21000343375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{1487}}^1\times {\mathrm{10271}}^1$

素因数の和:11784

約数の個数: 32

約数和(自身を含む): 28613025792

約数和(自身を除く): 7612682417

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 1487, 7435, 10271, 16357, 37175, 51355, 81785, 112981, 185875, 256775, 408925, 564905, 1283875, 2044625, 2824525, 14122625, 15272977, 76364885, 168002747, 381824425, 840013735, 1909122125, 4200068675, 21000343375]

約数ペア:

[(1, 21000343375), (5, 4200068675), (11, 1909122125), (25, 840013735), (55, 381824425), (125, 168002747), (275, 76364885), (1375, 15272977), (1487, 14122625), (7435, 2824525), (10271, 2044625), (16357, 1283875), (37175, 564905), (51355, 408925), (81785, 256775), (112981, 185875)]