21287854620

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{1237}}^1\times {\mathrm{3541}}^1$

素因数の和:4802

約数の個数: 144

約数和(自身を含む): 67037818848

約数和(自身を除く): 45749964228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1237, 1620, 2430, 2474, 3541, 3711, 4860, 4948, 6185, 7082, 7422, 10623, 11133, 12370, 14164, 14844, 17705, 18555, 21246, 22266, 24740, 31869, 33399, 35410, 37110, 42492, 44532, 53115, 55665, 63738, 66798, 70820, 74220, 95607, 100197, 106230, 111330, 127476, 133596, 159345, 166995, 191214, 200394, 212460, 222660, 286821, 300591, 318690, 333990, 382428, 400788, 478035, 500985, 573642, 601182, 637380, 667980, 860463, 956070, 1001970, 1147284, 1202364, 1434105, 1502955, 1720926, 1912140, 2003940, 2868210, 3005910, 3441852, 4302315, 4380217, 5736420, 6011820, 8604630, 8760434, 13140651, 17209260, 17520868, 21901085, 26281302, 39421953, 43802170, 52562604, 65703255, 78843906, 87604340, 118265859, 131406510, 157687812, 197109765, 236531718, 262813020, 354797577, 394219530, 473063436, 591329295, 709595154, 788439060, 1064392731, 1182658590, 1419190308, 1773987885, 2128785462, 2365317180, 3547975770, 4257570924, 5321963655, 7095951540, 10643927310, 21287854620]

約数ペア:

[(1, 21287854620), (2, 10643927310), (3, 7095951540), (4, 5321963655), (5, 4257570924), (6, 3547975770), (9, 2365317180), (10, 2128785462), (12, 1773987885), (15, 1419190308), (18, 1182658590), (20, 1064392731), (27, 788439060), (30, 709595154), (36, 591329295), (45, 473063436), (54, 394219530), (60, 354797577), (81, 262813020), (90, 236531718), (108, 197109765), (135, 157687812), (162, 131406510), (180, 118265859), (243, 87604340), (270, 78843906), (324, 65703255), (405, 52562604), (486, 43802170), (540, 39421953), (810, 26281302), (972, 21901085), (1215, 17520868), (1237, 17209260), (1620, 13140651), (2430, 8760434), (2474, 8604630), (3541, 6011820), (3711, 5736420), (4860, 4380217), (4948, 4302315), (6185, 3441852), (7082, 3005910), (7422, 2868210), (10623, 2003940), (11133, 1912140), (12370, 1720926), (14164, 1502955), (14844, 1434105), (17705, 1202364), (18555, 1147284), (21246, 1001970), (22266, 956070), (24740, 860463), (31869, 667980), (33399, 637380), (35410, 601182), (37110, 573642), (42492, 500985), (44532, 478035), (53115, 400788), (55665, 382428), (63738, 333990), (66798, 318690), (70820, 300591), (74220, 286821), (95607, 222660), (100197, 212460), (106230, 200394), (111330, 191214), (127476, 166995), (133596, 159345)]