21166920

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:209

約数の個数: 160

約数和(自身を含む): 73180800

約数和(自身を除く): 52013880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 81, 90, 94, 108, 120, 135, 139, 141, 162, 180, 188, 216, 235, 270, 278, 282, 324, 360, 376, 405, 417, 423, 470, 540, 556, 564, 648, 695, 705, 810, 834, 846, 940, 1080, 1112, 1128, 1251, 1269, 1390, 1410, 1620, 1668, 1692, 1880, 2085, 2115, 2502, 2538, 2780, 2820, 3240, 3336, 3384, 3753, 3807, 4170, 4230, 5004, 5076, 5560, 5640, 6255, 6345, 6533, 7506, 7614, 8340, 8460, 10008, 10152, 11259, 12510, 12690, 13066, 15012, 15228, 16680, 16920, 18765, 19035, 19599, 22518, 25020, 25380, 26132, 30024, 30456, 32665, 37530, 38070, 39198, 45036, 50040, 50760, 52264, 56295, 58797, 65330, 75060, 76140, 78396, 90072, 97995, 112590, 117594, 130660, 150120, 152280, 156792, 176391, 195990, 225180, 235188, 261320, 293985, 352782, 391980, 450360, 470376, 529173, 587970, 705564, 783960, 881955, 1058346, 1175940, 1411128, 1763910, 2116692, 2351880, 2645865, 3527820, 4233384, 5291730, 7055640, 10583460, 21166920]

約数ペア:

[(1, 21166920), (2, 10583460), (3, 7055640), (4, 5291730), (5, 4233384), (6, 3527820), (8, 2645865), (9, 2351880), (10, 2116692), (12, 1763910), (15, 1411128), (18, 1175940), (20, 1058346), (24, 881955), (27, 783960), (30, 705564), (36, 587970), (40, 529173), (45, 470376), (47, 450360), (54, 391980), (60, 352782), (72, 293985), (81, 261320), (90, 235188), (94, 225180), (108, 195990), (120, 176391), (135, 156792), (139, 152280), (141, 150120), (162, 130660), (180, 117594), (188, 112590), (216, 97995), (235, 90072), (270, 78396), (278, 76140), (282, 75060), (324, 65330), (360, 58797), (376, 56295), (405, 52264), (417, 50760), (423, 50040), (470, 45036), (540, 39198), (556, 38070), (564, 37530), (648, 32665), (695, 30456), (705, 30024), (810, 26132), (834, 25380), (846, 25020), (940, 22518), (1080, 19599), (1112, 19035), (1128, 18765), (1251, 16920), (1269, 16680), (1390, 15228), (1410, 15012), (1620, 13066), (1668, 12690), (1692, 12510), (1880, 11259), (2085, 10152), (2115, 10008), (2502, 8460), (2538, 8340), (2780, 7614), (2820, 7506), (3240, 6533), (3336, 6345), (3384, 6255), (3753, 5640), (3807, 5560), (4170, 5076), (4230, 5004)]