18117982

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 30391200

約数和(自身を除く): 12273218

約数列:

[1, 2, 19, 29, 38, 41, 58, 82, 401, 551, 779, 802, 1102, 1189, 1558, 2378, 7619, 11629, 15238, 16441, 22591, 23258, 32882, 45182, 220951, 312379, 441902, 476789, 624758, 953578, 9058991, 18117982]

約数ペア:

[(1, 18117982), (2, 9058991), (19, 953578), (29, 624758), (38, 476789), (41, 441902), (58, 312379), (82, 220951), (401, 45182), (551, 32882), (779, 23258), (802, 22591), (1102, 16441), (1189, 15238), (1558, 11629), (2378, 7619)]