21228060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50543}}^1$

素因数の和:50562

約数の個数: 48

約数和(自身を含む): 67931136

約数和(自身を除く): 46703076

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50543, 101086, 151629, 202172, 252715, 303258, 353801, 505430, 606516, 707602, 758145, 1010860, 1061403, 1415204, 1516290, 1769005, 2122806, 3032580, 3538010, 4245612, 5307015, 7076020, 10614030, 21228060]

約数ペア:

[(1, 21228060), (2, 10614030), (3, 7076020), (4, 5307015), (5, 4245612), (6, 3538010), (7, 3032580), (10, 2122806), (12, 1769005), (14, 1516290), (15, 1415204), (20, 1061403), (21, 1010860), (28, 758145), (30, 707602), (35, 606516), (42, 505430), (60, 353801), (70, 303258), (84, 252715), (105, 202172), (140, 151629), (210, 101086), (420, 50543)]