20731874445

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1553}}^1\times {\mathrm{6899}}^1$

素因数の和:8506

約数の個数: 48

約数和(自身を含む): 36799963200

約数和(自身を除く): 16068088755

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1553, 1935, 4659, 6899, 7765, 13977, 20697, 23295, 34495, 62091, 66779, 69885, 103485, 200337, 296657, 310455, 333895, 601011, 889971, 1001685, 1483285, 2669913, 3005055, 4449855, 10714147, 13349565, 32142441, 53570735, 96427323, 160712205, 460708321, 482136615, 1382124963, 2303541605, 4146374889, 6910624815, 20731874445]

約数ペア:

[(1, 20731874445), (3, 6910624815), (5, 4146374889), (9, 2303541605), (15, 1382124963), (43, 482136615), (45, 460708321), (129, 160712205), (215, 96427323), (387, 53570735), (645, 32142441), (1553, 13349565), (1935, 10714147), (4659, 4449855), (6899, 3005055), (7765, 2669913), (13977, 1483285), (20697, 1001685), (23295, 889971), (34495, 601011), (62091, 333895), (66779, 310455), (69885, 296657), (103485, 200337)]