315218913

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{331}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 454367232

約数和(自身を除く): 139148319

約数列:

[1, 3, 17, 51, 71, 213, 263, 331, 789, 993, 1207, 3621, 4471, 5627, 13413, 16881, 18673, 23501, 56019, 70503, 87053, 261159, 317441, 399517, 952323, 1198551, 1479901, 4439703, 6180763, 18542289, 105072971, 315218913]

約数ペア:

[(1, 315218913), (3, 105072971), (17, 18542289), (51, 6180763), (71, 4439703), (213, 1479901), (263, 1198551), (331, 952323), (789, 399517), (993, 317441), (1207, 261159), (3621, 87053), (4471, 70503), (5627, 56019), (13413, 23501), (16881, 18673)]