20584305

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{647}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 41243904

約数和(自身を除く): 20659599

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 101, 105, 303, 315, 505, 647, 707, 909, 1515, 1941, 2121, 3235, 3535, 4529, 4545, 5823, 6363, 9705, 10605, 13587, 22645, 29115, 31815, 40761, 65347, 67935, 196041, 203805, 326735, 457429, 588123, 980205, 1372287, 2287145, 2940615, 4116861, 6861435, 20584305]

約数ペア:

[(1, 20584305), (3, 6861435), (5, 4116861), (7, 2940615), (9, 2287145), (15, 1372287), (21, 980205), (35, 588123), (45, 457429), (63, 326735), (101, 203805), (105, 196041), (303, 67935), (315, 65347), (505, 40761), (647, 31815), (707, 29115), (909, 22645), (1515, 13587), (1941, 10605), (2121, 9705), (3235, 6363), (3535, 5823), (4529, 4545)]