15645987

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4357}}^1$

素因数の和:4392

約数の個数: 32

約数和(自身を含む): 27891200

約数和(自身を除く): 12245213

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 4357, 13071, 30499, 39213, 82783, 91497, 117639, 248349, 274491, 579481, 745047, 823473, 1738443, 2235141, 5215329, 15645987]

約数ペア:

[(1, 15645987), (3, 5215329), (7, 2235141), (9, 1738443), (19, 823473), (21, 745047), (27, 579481), (57, 274491), (63, 248349), (133, 117639), (171, 91497), (189, 82783), (399, 39213), (513, 30499), (1197, 13071), (3591, 4357)]