221480502418

素因数分解:

$2^1\times 7^1\times {\mathrm{11981}}^1\times {\mathrm{1320427}}^1$

素因数の和:1332417

約数の個数: 16

約数和(自身を含む): 379712839104

約数和(自身を除く): 158232336686

約数列:

[1, 2, 7, 14, 11981, 23962, 83867, 167734, 1320427, 2640854, 9242989, 18485978, 15820035887, 31640071774, 110740251209, 221480502418]

約数ペア:

[(1, 221480502418), (2, 110740251209), (7, 31640071774), (14, 15820035887), (11981, 18485978), (23962, 9242989), (83867, 2640854), (167734, 1320427)]