21252430

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:924

約数の個数: 32

約数和(自身を含む): 39890880

約数和(自身を除く): 18638450

約数列:

[1, 2, 5, 10, 37, 71, 74, 142, 185, 355, 370, 710, 809, 1618, 2627, 4045, 5254, 8090, 13135, 26270, 29933, 57439, 59866, 114878, 149665, 287195, 299330, 574390, 2125243, 4250486, 10626215, 21252430]

約数ペア:

[(1, 21252430), (2, 10626215), (5, 4250486), (10, 2125243), (37, 574390), (71, 299330), (74, 287195), (142, 149665), (185, 114878), (355, 59866), (370, 57439), (710, 29933), (809, 26270), (1618, 13135), (2627, 8090), (4045, 5254)]