20583885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 39739392

約数和(自身を除く): 19155507

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 47, 97, 105, 129, 141, 215, 235, 291, 301, 329, 485, 645, 679, 705, 903, 987, 1455, 1505, 1645, 2021, 2037, 3395, 4171, 4515, 4559, 4935, 6063, 10105, 10185, 12513, 13677, 14147, 20855, 22795, 29197, 30315, 31913, 42441, 62565, 68385, 70735, 87591, 95739, 145985, 159565, 196037, 212205, 437955, 478695, 588111, 980185, 1372259, 2940555, 4116777, 6861295, 20583885]

約数ペア:

[(1, 20583885), (3, 6861295), (5, 4116777), (7, 2940555), (15, 1372259), (21, 980185), (35, 588111), (43, 478695), (47, 437955), (97, 212205), (105, 196037), (129, 159565), (141, 145985), (215, 95739), (235, 87591), (291, 70735), (301, 68385), (329, 62565), (485, 42441), (645, 31913), (679, 30315), (705, 29197), (903, 22795), (987, 20855), (1455, 14147), (1505, 13677), (1645, 12513), (2021, 10185), (2037, 10105), (3395, 6063), (4171, 4935), (4515, 4559)]