287691657

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:806

約数の個数: 32

約数和(自身を含む): 426433920

約数和(自身を除く): 138742263

約数列:

[1, 3, 11, 33, 109, 121, 327, 363, 661, 1199, 1331, 1983, 3597, 3993, 7271, 13189, 21813, 39567, 72049, 79981, 145079, 216147, 239943, 435237, 792539, 879791, 2377617, 2639373, 8717929, 26153787, 95897219, 287691657]

約数ペア:

[(1, 287691657), (3, 95897219), (11, 26153787), (33, 8717929), (109, 2639373), (121, 2377617), (327, 879791), (363, 792539), (661, 435237), (1199, 239943), (1331, 216147), (1983, 145079), (3597, 79981), (3993, 72049), (7271, 39567), (13189, 21813)]