19774736

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20261}}^1$

素因数の和:20330

約数の個数: 20

約数和(自身を含む): 38943564

約数和(自身を除く): 19168828

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20261, 40522, 81044, 162088, 324176, 1235921, 2471842, 4943684, 9887368, 19774736]

約数ペア:

[(1, 19774736), (2, 9887368), (4, 4943684), (8, 2471842), (16, 1235921), (61, 324176), (122, 162088), (244, 81044), (488, 40522), (976, 20261)]