20856906

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2399}}^1$

素因数の和:2440

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 34439094

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 27, 42, 46, 54, 63, 69, 126, 138, 161, 189, 207, 322, 378, 414, 483, 621, 966, 1242, 1449, 2399, 2898, 4347, 4798, 7197, 8694, 14394, 16793, 21591, 33586, 43182, 50379, 55177, 64773, 100758, 110354, 129546, 151137, 165531, 302274, 331062, 386239, 453411, 496593, 772478, 906822, 993186, 1158717, 1489779, 2317434, 2979558, 3476151, 6952302, 10428453, 20856906]

約数ペア:

[(1, 20856906), (2, 10428453), (3, 6952302), (6, 3476151), (7, 2979558), (9, 2317434), (14, 1489779), (18, 1158717), (21, 993186), (23, 906822), (27, 772478), (42, 496593), (46, 453411), (54, 386239), (63, 331062), (69, 302274), (126, 165531), (138, 151137), (161, 129546), (189, 110354), (207, 100758), (322, 64773), (378, 55177), (414, 50379), (483, 43182), (621, 33586), (966, 21591), (1242, 16793), (1449, 14394), (2399, 8694), (2898, 7197), (4347, 4798)]