20658358

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2099}}^1$

素因数の和:2164

約数の個数: 32

約数和(自身を含む): 38304000

約数和(自身を除く): 17645642

約数列:

[1, 2, 7, 14, 19, 37, 38, 74, 133, 259, 266, 518, 703, 1406, 2099, 4198, 4921, 9842, 14693, 29386, 39881, 77663, 79762, 155326, 279167, 543641, 558334, 1087282, 1475597, 2951194, 10329179, 20658358]

約数ペア:

[(1, 20658358), (2, 10329179), (7, 2951194), (14, 1475597), (19, 1087282), (37, 558334), (38, 543641), (74, 279167), (133, 155326), (259, 79762), (266, 77663), (518, 39881), (703, 29386), (1406, 14693), (2099, 9842), (4198, 4921)]