291581997

素因数分解:

$3^1\times 7^2\times {\mathrm{487}}^1\times {\mathrm{4073}}^1$

素因数の和:4577

約数の個数: 24

約数和(自身を含む): 453289536

約数和(自身を除く): 161707539

約数列:

[1, 3, 7, 21, 49, 147, 487, 1461, 3409, 4073, 10227, 12219, 23863, 28511, 71589, 85533, 199577, 598731, 1983551, 5950653, 13884857, 41654571, 97193999, 291581997]

約数ペア:

[(1, 291581997), (3, 97193999), (7, 41654571), (21, 13884857), (49, 5950653), (147, 1983551), (487, 598731), (1461, 199577), (3409, 85533), (4073, 71589), (10227, 28511), (12219, 23863)]