21317670

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:438

約数の個数: 96

約数和(自身を含む): 61629984

約数和(自身を除く): 40312314

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 61, 66, 90, 99, 110, 122, 165, 183, 198, 305, 330, 353, 366, 495, 549, 610, 671, 706, 915, 990, 1059, 1098, 1342, 1765, 1830, 2013, 2118, 2745, 3177, 3355, 3530, 3883, 4026, 5295, 5490, 6039, 6354, 6710, 7766, 10065, 10590, 11649, 12078, 15885, 19415, 20130, 21533, 23298, 30195, 31770, 34947, 38830, 43066, 58245, 60390, 64599, 69894, 107665, 116490, 129198, 174735, 193797, 215330, 236863, 322995, 349470, 387594, 473726, 645990, 710589, 968985, 1184315, 1421178, 1937970, 2131767, 2368630, 3552945, 4263534, 7105890, 10658835, 21317670]

約数ペア:

[(1, 21317670), (2, 10658835), (3, 7105890), (5, 4263534), (6, 3552945), (9, 2368630), (10, 2131767), (11, 1937970), (15, 1421178), (18, 1184315), (22, 968985), (30, 710589), (33, 645990), (45, 473726), (55, 387594), (61, 349470), (66, 322995), (90, 236863), (99, 215330), (110, 193797), (122, 174735), (165, 129198), (183, 116490), (198, 107665), (305, 69894), (330, 64599), (353, 60390), (366, 58245), (495, 43066), (549, 38830), (610, 34947), (671, 31770), (706, 30195), (915, 23298), (990, 21533), (1059, 20130), (1098, 19415), (1342, 15885), (1765, 12078), (1830, 11649), (2013, 10590), (2118, 10065), (2745, 7766), (3177, 6710), (3355, 6354), (3530, 6039), (3883, 5490), (4026, 5295)]