21054056

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{367}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 40538880

約数和(自身を除く): 19484824

約数列:

[1, 2, 4, 8, 71, 101, 142, 202, 284, 367, 404, 568, 734, 808, 1468, 2936, 7171, 14342, 26057, 28684, 37067, 52114, 57368, 74134, 104228, 148268, 208456, 296536, 2631757, 5263514, 10527028, 21054056]

約数ペア:

[(1, 21054056), (2, 10527028), (4, 5263514), (8, 2631757), (71, 296536), (101, 208456), (142, 148268), (202, 104228), (284, 74134), (367, 57368), (404, 52114), (568, 37067), (734, 28684), (808, 26057), (1468, 14342), (2936, 7171)]