21663325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{773}}^1$

素因数の和:861

約数の個数: 24

約数和(自身を含む): 28792800

約数和(自身を除く): 7129475

約数列:

[1, 5, 19, 25, 59, 95, 295, 475, 773, 1121, 1475, 3865, 5605, 14687, 19325, 28025, 45607, 73435, 228035, 367175, 866533, 1140175, 4332665, 21663325]

約数ペア:

[(1, 21663325), (5, 4332665), (19, 1140175), (25, 866533), (59, 367175), (95, 228035), (295, 73435), (475, 45607), (773, 28025), (1121, 19325), (1475, 14687), (3865, 5605)]