20875998

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{839}}^1$

素因数の和:897

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 29927202

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 29, 33, 39, 58, 66, 78, 87, 143, 174, 286, 319, 377, 429, 638, 754, 839, 858, 957, 1131, 1678, 1914, 2262, 2517, 4147, 5034, 8294, 9229, 10907, 12441, 18458, 21814, 24331, 24882, 27687, 32721, 48662, 55374, 65442, 72993, 119977, 145986, 239954, 267641, 316303, 359931, 535282, 632606, 719862, 802923, 948909, 1605846, 1897818, 3479333, 6958666, 10437999, 20875998]

約数ペア:

[(1, 20875998), (2, 10437999), (3, 6958666), (6, 3479333), (11, 1897818), (13, 1605846), (22, 948909), (26, 802923), (29, 719862), (33, 632606), (39, 535282), (58, 359931), (66, 316303), (78, 267641), (87, 239954), (143, 145986), (174, 119977), (286, 72993), (319, 65442), (377, 55374), (429, 48662), (638, 32721), (754, 27687), (839, 24882), (858, 24331), (957, 21814), (1131, 18458), (1678, 12441), (1914, 10907), (2262, 9229), (2517, 8294), (4147, 5034)]