18718196

素因数分解:

$2^2\times 7^4\times {\mathrm{1949}}^1$

素因数の和:1981

約数の個数: 30

約数和(自身を含む): 38233650

約数和(自身を除く): 19515454

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 1949, 2401, 3898, 4802, 7796, 9604, 13643, 27286, 54572, 95501, 191002, 382004, 668507, 1337014, 2674028, 4679549, 9359098, 18718196]

約数ペア:

[(1, 18718196), (2, 9359098), (4, 4679549), (7, 2674028), (14, 1337014), (28, 668507), (49, 382004), (98, 191002), (196, 95501), (343, 54572), (686, 27286), (1372, 13643), (1949, 9604), (2401, 7796), (3898, 4802)]