21905310

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{104311}}^1$

素因数の和:104328

約数の個数: 32

約数和(自身を含む): 60083712

約数和(自身を除く): 38178402

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 104311, 208622, 312933, 521555, 625866, 730177, 1043110, 1460354, 1564665, 2190531, 3129330, 3650885, 4381062, 7301770, 10952655, 21905310]

約数ペア:

[(1, 21905310), (2, 10952655), (3, 7301770), (5, 4381062), (6, 3650885), (7, 3129330), (10, 2190531), (14, 1564665), (15, 1460354), (21, 1043110), (30, 730177), (35, 625866), (42, 521555), (70, 312933), (105, 208622), (210, 104311)]