21000514820

素因数分解:

$2^2\times 5^1\times {\mathrm{18427}}^1\times {\mathrm{56983}}^1$

素因数の和:75419

約数の個数: 24

約数和(自身を含む): 44104248384

約数和(自身を除く): 23103733564

約数列:

[1, 2, 4, 5, 10, 20, 18427, 36854, 56983, 73708, 92135, 113966, 184270, 227932, 284915, 368540, 569830, 1139660, 1050025741, 2100051482, 4200102964, 5250128705, 10500257410, 21000514820]

約数ペア:

[(1, 21000514820), (2, 10500257410), (4, 5250128705), (5, 4200102964), (10, 2100051482), (20, 1050025741), (18427, 1139660), (36854, 569830), (56983, 368540), (73708, 284915), (92135, 227932), (113966, 184270)]