21904995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{911}}^1$

素因数の和:1155

約数の個数: 32

約数和(自身を含む): 40273920

約数和(自身を除く): 18368925

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 229, 687, 911, 1145, 1603, 2733, 3435, 4555, 4809, 6377, 8015, 13665, 19131, 24045, 31885, 95655, 208619, 625857, 1043095, 1460333, 3129285, 4380999, 7301665, 21904995]

約数ペア:

[(1, 21904995), (3, 7301665), (5, 4380999), (7, 3129285), (15, 1460333), (21, 1043095), (35, 625857), (105, 208619), (229, 95655), (687, 31885), (911, 24045), (1145, 19131), (1603, 13665), (2733, 8015), (3435, 6377), (4555, 4809)]