21123543830

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1\times {\mathrm{109579}}^1$

素因数の和:110144

約数の個数: 32

約数和(自身を含む): 39125319840

約数和(自身を除く): 18001776010

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 521, 1042, 2605, 5210, 19277, 38554, 96385, 109579, 192770, 219158, 547895, 1095790, 4054423, 8108846, 20272115, 40544230, 57090659, 114181318, 285453295, 570906590, 2112354383, 4224708766, 10561771915, 21123543830]

約数ペア:

[(1, 21123543830), (2, 10561771915), (5, 4224708766), (10, 2112354383), (37, 570906590), (74, 285453295), (185, 114181318), (370, 57090659), (521, 40544230), (1042, 20272115), (2605, 8108846), (5210, 4054423), (19277, 1095790), (38554, 547895), (96385, 219158), (109579, 192770)]