21246904

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12239}}^1$

素因数の和:12283

約数の個数: 32

約数和(自身を含む): 47001600

約数和(自身を除く): 25754696

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 12239, 24478, 48956, 85673, 97912, 171346, 342692, 379409, 685384, 758818, 1517636, 2655863, 3035272, 5311726, 10623452, 21246904]

約数ペア:

[(1, 21246904), (2, 10623452), (4, 5311726), (7, 3035272), (8, 2655863), (14, 1517636), (28, 758818), (31, 685384), (56, 379409), (62, 342692), (124, 171346), (217, 97912), (248, 85673), (434, 48956), (868, 24478), (1736, 12239)]