81463431

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29167}}^1$

素因数の和:29203

約数の個数: 24

約数和(自身を含む): 133006080

約数和(自身を除く): 51542649

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 29167, 87501, 204169, 554173, 612507, 1429183, 1662519, 3879211, 4287549, 11637633, 27154477, 81463431]

約数ペア:

[(1, 81463431), (3, 27154477), (7, 11637633), (19, 4287549), (21, 3879211), (49, 1662519), (57, 1429183), (133, 612507), (147, 554173), (399, 204169), (931, 87501), (2793, 29167)]