21918045

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 36093312

約数和(自身を除く): 14175267

約数列:

[1, 3, 5, 15, 67, 113, 193, 201, 335, 339, 565, 579, 965, 1005, 1695, 2895, 7571, 12931, 21809, 22713, 37855, 38793, 64655, 65427, 109045, 113565, 193965, 327135, 1461203, 4383609, 7306015, 21918045]

約数ペア:

[(1, 21918045), (3, 7306015), (5, 4383609), (15, 1461203), (67, 327135), (113, 193965), (193, 113565), (201, 109045), (335, 65427), (339, 64655), (565, 38793), (579, 37855), (965, 22713), (1005, 21809), (1695, 12931), (2895, 7571)]