21308898

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1063}}^1$

素因数の和:1338

約数の個数: 32

約数和(自身を含む): 46118016

約数和(自身を除く): 24809118

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257, 514, 771, 1063, 1542, 2126, 3189, 3341, 6378, 6682, 10023, 13819, 20046, 27638, 41457, 82914, 273191, 546382, 819573, 1639146, 3551483, 7102966, 10654449, 21308898]

約数ペア:

[(1, 21308898), (2, 10654449), (3, 7102966), (6, 3551483), (13, 1639146), (26, 819573), (39, 546382), (78, 273191), (257, 82914), (514, 41457), (771, 27638), (1063, 20046), (1542, 13819), (2126, 10023), (3189, 6682), (3341, 6378)]