21751372

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:697

約数の個数: 24

約数和(自身を含む): 38908016

約数和(自身を除く): 17156644

約数列:

[1, 2, 4, 73, 146, 163, 292, 326, 457, 652, 914, 1828, 11899, 23798, 33361, 47596, 66722, 74491, 133444, 148982, 297964, 5437843, 10875686, 21751372]

約数ペア:

[(1, 21751372), (2, 10875686), (4, 5437843), (73, 297964), (146, 148982), (163, 133444), (292, 74491), (326, 66722), (457, 47596), (652, 33361), (914, 23798), (1828, 11899)]