21165420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352757}}^1$

素因数の和:352769

約数の個数: 24

約数和(自身を含む): 59263344

約数和(自身を除く): 38097924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352757, 705514, 1058271, 1411028, 1763785, 2116542, 3527570, 4233084, 5291355, 7055140, 10582710, 21165420]

約数ペア:

[(1, 21165420), (2, 10582710), (3, 7055140), (4, 5291355), (5, 4233084), (6, 3527570), (10, 2116542), (12, 1763785), (15, 1411028), (20, 1058271), (30, 705514), (60, 352757)]