18355988

素因数分解:

$2^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{787}}^1$

素因数の和:829

約数の個数: 48

約数和(自身を含む): 39715200

約数和(自身を除く): 21359212

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 343, 476, 686, 787, 833, 1372, 1574, 1666, 3148, 3332, 5509, 5831, 11018, 11662, 13379, 22036, 23324, 26758, 38563, 53516, 77126, 93653, 154252, 187306, 269941, 374612, 539882, 655571, 1079764, 1311142, 2622284, 4588997, 9177994, 18355988]

約数ペア:

[(1, 18355988), (2, 9177994), (4, 4588997), (7, 2622284), (14, 1311142), (17, 1079764), (28, 655571), (34, 539882), (49, 374612), (68, 269941), (98, 187306), (119, 154252), (196, 93653), (238, 77126), (343, 53516), (476, 38563), (686, 26758), (787, 23324), (833, 22036), (1372, 13379), (1574, 11662), (1666, 11018), (3148, 5831), (3332, 5509)]