18612825

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{293}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 38789184

約数和(自身を除く): 20176359

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 121, 165, 175, 231, 275, 293, 363, 385, 525, 605, 825, 847, 879, 1155, 1465, 1815, 1925, 2051, 2541, 3025, 3223, 4235, 4395, 5775, 6153, 7325, 9075, 9669, 10255, 12705, 16115, 21175, 21975, 22561, 30765, 35453, 48345, 51275, 63525, 67683, 80575, 106359, 112805, 153825, 177265, 241725, 248171, 338415, 531795, 564025, 744513, 886325, 1240855, 1692075, 2658975, 3722565, 6204275, 18612825]

約数ペア:

[(1, 18612825), (3, 6204275), (5, 3722565), (7, 2658975), (11, 1692075), (15, 1240855), (21, 886325), (25, 744513), (33, 564025), (35, 531795), (55, 338415), (75, 248171), (77, 241725), (105, 177265), (121, 153825), (165, 112805), (175, 106359), (231, 80575), (275, 67683), (293, 63525), (363, 51275), (385, 48345), (525, 35453), (605, 30765), (825, 22561), (847, 21975), (879, 21175), (1155, 16115), (1465, 12705), (1815, 10255), (1925, 9669), (2051, 9075), (2541, 7325), (3025, 6153), (3223, 5775), (4235, 4395)]