21282508

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1657}}^1$

素因数の和:1706

約数の個数: 36

約数和(自身を含む): 42477960

約数和(自身を除く): 21195452

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 169, 247, 338, 494, 676, 988, 1657, 3211, 3314, 6422, 6628, 12844, 21541, 31483, 43082, 62966, 86164, 125932, 280033, 409279, 560066, 818558, 1120132, 1637116, 5320627, 10641254, 21282508]

約数ペア:

[(1, 21282508), (2, 10641254), (4, 5320627), (13, 1637116), (19, 1120132), (26, 818558), (38, 560066), (52, 409279), (76, 280033), (169, 125932), (247, 86164), (338, 62966), (494, 43082), (676, 31483), (988, 21541), (1657, 12844), (3211, 6628), (3314, 6422)]