21518490

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2383}}^1$

素因数の和:2443

約数の個数: 64

約数和(自身を含む): 60420096

約数和(自身を除く): 38901606

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 86, 105, 129, 210, 215, 258, 301, 430, 602, 645, 903, 1290, 1505, 1806, 2383, 3010, 4515, 4766, 7149, 9030, 11915, 14298, 16681, 23830, 33362, 35745, 50043, 71490, 83405, 100086, 102469, 166810, 204938, 250215, 307407, 500430, 512345, 614814, 717283, 1024690, 1434566, 1537035, 2151849, 3074070, 3586415, 4303698, 7172830, 10759245, 21518490]

約数ペア:

[(1, 21518490), (2, 10759245), (3, 7172830), (5, 4303698), (6, 3586415), (7, 3074070), (10, 2151849), (14, 1537035), (15, 1434566), (21, 1024690), (30, 717283), (35, 614814), (42, 512345), (43, 500430), (70, 307407), (86, 250215), (105, 204938), (129, 166810), (210, 102469), (215, 100086), (258, 83405), (301, 71490), (430, 50043), (602, 35745), (645, 33362), (903, 23830), (1290, 16681), (1505, 14298), (1806, 11915), (2383, 9030), (3010, 7149), (4515, 4766)]