21199738

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 37425024

約数和(自身を除く): 16225286

約数列:

[1, 2, 7, 14, 67, 97, 134, 194, 233, 466, 469, 679, 938, 1358, 1631, 3262, 6499, 12998, 15611, 22601, 31222, 45202, 45493, 90986, 109277, 158207, 218554, 316414, 1514267, 3028534, 10599869, 21199738]

約数ペア:

[(1, 21199738), (2, 10599869), (7, 3028534), (14, 1514267), (67, 316414), (97, 218554), (134, 158207), (194, 109277), (233, 90986), (466, 45493), (469, 45202), (679, 31222), (938, 22601), (1358, 15611), (1631, 12998), (3262, 6499)]