21408191

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{769}}^1$

素因数の和:914

約数の個数: 16

約数和(自身を含む): 25354560

約数和(自身を除く): 3946369

約数列:

[1, 7, 41, 97, 287, 679, 769, 3977, 5383, 27839, 31529, 74593, 220703, 522151, 3058313, 21408191]

約数ペア:

[(1, 21408191), (7, 3058313), (41, 522151), (97, 220703), (287, 74593), (679, 31529), (769, 27839), (3977, 5383)]