21228030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1583}}^1$

素因数の和:1745

約数の個数: 48

約数和(自身を含む): 55598400

約数和(自身を除く): 34370370

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 149, 298, 447, 745, 894, 1341, 1490, 1583, 2235, 2682, 3166, 4470, 4749, 6705, 7915, 9498, 13410, 14247, 15830, 23745, 28494, 47490, 71235, 142470, 235867, 471734, 707601, 1179335, 1415202, 2122803, 2358670, 3538005, 4245606, 7076010, 10614015, 21228030]

約数ペア:

[(1, 21228030), (2, 10614015), (3, 7076010), (5, 4245606), (6, 3538005), (9, 2358670), (10, 2122803), (15, 1415202), (18, 1179335), (30, 707601), (45, 471734), (90, 235867), (149, 142470), (298, 71235), (447, 47490), (745, 28494), (894, 23745), (1341, 15830), (1490, 14247), (1583, 13410), (2235, 9498), (2682, 7915), (3166, 6705), (4470, 4749)]