20951406

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1350

約数の個数: 64

約数和(自身を含む): 54489600

約数和(自身を除く): 33538194

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 43, 54, 63, 86, 126, 129, 189, 258, 301, 378, 387, 602, 774, 903, 1161, 1289, 1806, 2322, 2578, 2709, 3867, 5418, 7734, 8127, 9023, 11601, 16254, 18046, 23202, 27069, 34803, 54138, 55427, 69606, 81207, 110854, 162414, 166281, 243621, 332562, 387989, 487242, 498843, 775978, 997686, 1163967, 1496529, 2327934, 2993058, 3491901, 6983802, 10475703, 20951406]

約数ペア:

[(1, 20951406), (2, 10475703), (3, 6983802), (6, 3491901), (7, 2993058), (9, 2327934), (14, 1496529), (18, 1163967), (21, 997686), (27, 775978), (42, 498843), (43, 487242), (54, 387989), (63, 332562), (86, 243621), (126, 166281), (129, 162414), (189, 110854), (258, 81207), (301, 69606), (378, 55427), (387, 54138), (602, 34803), (774, 27069), (903, 23202), (1161, 18046), (1289, 16254), (1806, 11601), (2322, 9023), (2578, 8127), (2709, 7734), (3867, 5418)]