21000298470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{953}}^1\times {\mathrm{1063}}^1$

素因数の和:2717

約数の個数: 64

約数和(自身を含む): 50574150144

約数和(自身を除く): 29573851674

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 691, 953, 1063, 1382, 1906, 2073, 2126, 2859, 3189, 3455, 4146, 4765, 5315, 5718, 6378, 6910, 9530, 10365, 10630, 14295, 15945, 20730, 28590, 31890, 658523, 734533, 1013039, 1317046, 1469066, 1975569, 2026078, 2203599, 3039117, 3292615, 3672665, 3951138, 4407198, 5065195, 6078234, 6585230, 7345330, 9877845, 10130390, 11017995, 15195585, 19755690, 22035990, 30391170, 700009949, 1400019898, 2100029847, 3500049745, 4200059694, 7000099490, 10500149235, 21000298470]

約数ペア:

[(1, 21000298470), (2, 10500149235), (3, 7000099490), (5, 4200059694), (6, 3500049745), (10, 2100029847), (15, 1400019898), (30, 700009949), (691, 30391170), (953, 22035990), (1063, 19755690), (1382, 15195585), (1906, 11017995), (2073, 10130390), (2126, 9877845), (2859, 7345330), (3189, 6585230), (3455, 6078234), (4146, 5065195), (4765, 4407198), (5315, 3951138), (5718, 3672665), (6378, 3292615), (6910, 3039117), (9530, 2203599), (10365, 2026078), (10630, 1975569), (14295, 1469066), (15945, 1317046), (20730, 1013039), (28590, 734533), (31890, 658523)]