12856563

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 40

約数和(自身を含む): 20537088

約数和(自身を除く): 7680525

約数列:

[1, 3, 9, 23, 27, 67, 69, 81, 103, 201, 207, 309, 603, 621, 927, 1541, 1809, 1863, 2369, 2781, 4623, 5427, 6901, 7107, 8343, 13869, 20703, 21321, 41607, 62109, 63963, 124821, 158723, 186327, 191889, 476169, 558981, 1428507, 4285521, 12856563]

約数ペア:

[(1, 12856563), (3, 4285521), (9, 1428507), (23, 558981), (27, 476169), (67, 191889), (69, 186327), (81, 158723), (103, 124821), (201, 63963), (207, 62109), (309, 41607), (603, 21321), (621, 20703), (927, 13869), (1541, 8343), (1809, 7107), (1863, 6901), (2369, 5427), (2781, 4623)]