21238370

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{941}}^1$

素因数の和:1046

約数の個数: 32

約数和(自身を含む): 39948336

約数和(自身を除く): 18709966

約数列:

[1, 2, 5, 10, 37, 61, 74, 122, 185, 305, 370, 610, 941, 1882, 2257, 4514, 4705, 9410, 11285, 22570, 34817, 57401, 69634, 114802, 174085, 287005, 348170, 574010, 2123837, 4247674, 10619185, 21238370]

約数ペア:

[(1, 21238370), (2, 10619185), (5, 4247674), (10, 2123837), (37, 574010), (61, 348170), (74, 287005), (122, 174085), (185, 114802), (305, 69634), (370, 57401), (610, 34817), (941, 22570), (1882, 11285), (2257, 9410), (4514, 4705)]