81341271

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 135233280

約数和(自身を除く): 53892009

約数列:

[1, 3, 9, 11, 23, 33, 69, 99, 139, 207, 253, 257, 417, 759, 771, 1251, 1529, 2277, 2313, 2827, 3197, 4587, 5911, 8481, 9591, 13761, 17733, 25443, 28773, 35167, 35723, 53199, 65021, 105501, 107169, 195063, 316503, 321507, 392953, 585189, 821629, 1178859, 2464887, 3536577, 7394661, 9037919, 27113757, 81341271]

約数ペア:

[(1, 81341271), (3, 27113757), (9, 9037919), (11, 7394661), (23, 3536577), (33, 2464887), (69, 1178859), (99, 821629), (139, 585189), (207, 392953), (253, 321507), (257, 316503), (417, 195063), (759, 107169), (771, 105501), (1251, 65021), (1529, 53199), (2277, 35723), (2313, 35167), (2827, 28773), (3197, 25443), (4587, 17733), (5911, 13761), (8481, 9591)]