21087480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10337}}^1$

素因数の和:10368

約数の個数: 64

約数和(自身を含む): 66990240

約数和(自身を除く): 45902760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10337, 20674, 31011, 41348, 51685, 62022, 82696, 103370, 124044, 155055, 175729, 206740, 248088, 310110, 351458, 413480, 527187, 620220, 702916, 878645, 1054374, 1240440, 1405832, 1757290, 2108748, 2635935, 3514580, 4217496, 5271870, 7029160, 10543740, 21087480]

約数ペア:

[(1, 21087480), (2, 10543740), (3, 7029160), (4, 5271870), (5, 4217496), (6, 3514580), (8, 2635935), (10, 2108748), (12, 1757290), (15, 1405832), (17, 1240440), (20, 1054374), (24, 878645), (30, 702916), (34, 620220), (40, 527187), (51, 413480), (60, 351458), (68, 310110), (85, 248088), (102, 206740), (120, 175729), (136, 155055), (170, 124044), (204, 103370), (255, 82696), (340, 62022), (408, 51685), (510, 41348), (680, 31011), (1020, 20674), (2040, 10337)]