81931419

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{487}}^1$

素因数の和:597

約数の個数: 40

約数和(自身を含む): 128488448

約数和(自身を除く): 46557029

約数列:

[1, 3, 9, 27, 31, 67, 81, 93, 201, 279, 487, 603, 837, 1461, 1809, 2077, 2511, 4383, 5427, 6231, 13149, 15097, 18693, 32629, 39447, 45291, 56079, 97887, 135873, 168237, 293661, 407619, 880983, 1011499, 1222857, 2642949, 3034497, 9103491, 27310473, 81931419]

約数ペア:

[(1, 81931419), (3, 27310473), (9, 9103491), (27, 3034497), (31, 2642949), (67, 1222857), (81, 1011499), (93, 880983), (201, 407619), (279, 293661), (487, 168237), (603, 135873), (837, 97887), (1461, 56079), (1809, 45291), (2077, 39447), (2511, 32629), (4383, 18693), (5427, 15097), (6231, 13149)]