21289654

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{557}}^1\times {\mathrm{659}}^1$

素因数の和:1247

約数の個数: 16

約数和(自身を含む): 33145200

約数和(自身を除く): 11855546

約数列:

[1, 2, 29, 58, 557, 659, 1114, 1318, 16153, 19111, 32306, 38222, 367063, 734126, 10644827, 21289654]

約数ペア:

[(1, 21289654), (2, 10644827), (29, 734126), (58, 367063), (557, 38222), (659, 32306), (1114, 19111), (1318, 16153)]