20965014

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1499}}^1$

素因数の和:1554

約数の個数: 64

約数和(自身を含む): 54720000

約数和(自身を除く): 33754986

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 42, 54, 63, 74, 111, 126, 189, 222, 259, 333, 378, 518, 666, 777, 999, 1499, 1554, 1998, 2331, 2998, 4497, 4662, 6993, 8994, 10493, 13491, 13986, 20986, 26982, 31479, 40473, 55463, 62958, 80946, 94437, 110926, 166389, 188874, 283311, 332778, 388241, 499167, 566622, 776482, 998334, 1164723, 1497501, 2329446, 2995002, 3494169, 6988338, 10482507, 20965014]

約数ペア:

[(1, 20965014), (2, 10482507), (3, 6988338), (6, 3494169), (7, 2995002), (9, 2329446), (14, 1497501), (18, 1164723), (21, 998334), (27, 776482), (37, 566622), (42, 499167), (54, 388241), (63, 332778), (74, 283311), (111, 188874), (126, 166389), (189, 110926), (222, 94437), (259, 80946), (333, 62958), (378, 55463), (518, 40473), (666, 31479), (777, 26982), (999, 20986), (1499, 13986), (1554, 13491), (1998, 10493), (2331, 8994), (2998, 6993), (4497, 4662)]