66604671

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{7949}}^1$

素因数の和:7988

約数の個数: 36

約数和(自身を含む): 117819000

約数和(自身を除く): 51214329

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2793, 7949, 8379, 23847, 55643, 71541, 151031, 166929, 389501, 453093, 500787, 1057217, 1168503, 1359279, 3171651, 3505509, 7400519, 9514953, 22201557, 66604671]

約数ペア:

[(1, 66604671), (3, 22201557), (7, 9514953), (9, 7400519), (19, 3505509), (21, 3171651), (49, 1359279), (57, 1168503), (63, 1057217), (133, 500787), (147, 453093), (171, 389501), (399, 166929), (441, 151031), (931, 71541), (1197, 55643), (2793, 23847), (7949, 8379)]