21687284

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{619}}^1$

素因数の和:1103

約数の個数: 24

約数和(自身を含む): 40101600

約数和(自身を除く): 18414316

約数列:

[1, 2, 4, 19, 38, 76, 461, 619, 922, 1238, 1844, 2476, 8759, 11761, 17518, 23522, 35036, 47044, 285359, 570718, 1141436, 5421821, 10843642, 21687284]

約数ペア:

[(1, 21687284), (2, 10843642), (4, 5421821), (19, 1141436), (38, 570718), (76, 285359), (461, 47044), (619, 35036), (922, 23522), (1238, 17518), (1844, 11761), (2476, 8759)]