21139941721

素因数分解:

${\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{659}}^1\times {\mathrm{1699}}^1$

素因数の和:2676

約数の個数: 16

約数和(自身を含む): 21542400000

約数和(自身を除く): 402458279

約数列:

[1, 79, 239, 659, 1699, 18881, 52061, 134221, 157501, 406061, 1119641, 12442579, 32078819, 88451639, 267594199, 21139941721]

約数ペア:

[(1, 21139941721), (79, 267594199), (239, 88451639), (659, 32078819), (1699, 12442579), (18881, 1119641), (52061, 406061), (134221, 157501)]