21006018

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{383}}^1$

素因数の和:679

約数の個数: 48

約数和(自身を含む): 49959936

約数和(自身を除く): 28953918

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 277, 383, 554, 766, 831, 1149, 1662, 2298, 2493, 3047, 3447, 4213, 4986, 6094, 6894, 8426, 9141, 12639, 18282, 25278, 27423, 37917, 54846, 75834, 106091, 212182, 318273, 636546, 954819, 1167001, 1909638, 2334002, 3501003, 7002006, 10503009, 21006018]

約数ペア:

[(1, 21006018), (2, 10503009), (3, 7002006), (6, 3501003), (9, 2334002), (11, 1909638), (18, 1167001), (22, 954819), (33, 636546), (66, 318273), (99, 212182), (198, 106091), (277, 75834), (383, 54846), (554, 37917), (766, 27423), (831, 25278), (1149, 18282), (1662, 12639), (2298, 9141), (2493, 8426), (3047, 6894), (3447, 6094), (4213, 4986)]