21206470

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{467}}^1$

素因数の和:732

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 19228730

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 239, 467, 478, 934, 1195, 2335, 2390, 4541, 4670, 8873, 9082, 17746, 22705, 44365, 45410, 88730, 111613, 223226, 558065, 1116130, 2120647, 4241294, 10603235, 21206470]

約数ペア:

[(1, 21206470), (2, 10603235), (5, 4241294), (10, 2120647), (19, 1116130), (38, 558065), (95, 223226), (190, 111613), (239, 88730), (467, 45410), (478, 44365), (934, 22705), (1195, 17746), (2335, 9082), (2390, 8873), (4541, 4670)]