21998313

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2131}}^1$

素因数の和:2205

約数の個数: 24

約数和(自身を含む): 33702656

約数和(自身を除く): 11704343

約数列:

[1, 3, 9, 31, 37, 93, 111, 279, 333, 1147, 2131, 3441, 6393, 10323, 19179, 66061, 78847, 198183, 236541, 594549, 709623, 2444257, 7332771, 21998313]

約数ペア:

[(1, 21998313), (3, 7332771), (9, 2444257), (31, 709623), (37, 594549), (93, 236541), (111, 198183), (279, 78847), (333, 66061), (1147, 19179), (2131, 10323), (3441, 6393)]