19845496

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3697}}^1$

素因数の和:3775

約数の個数: 32

約数和(自身を含む): 41269680

約数和(自身を除く): 21424184

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 3697, 5368, 7394, 14788, 29576, 40667, 81334, 162668, 225517, 325336, 451034, 902068, 1804136, 2480687, 4961374, 9922748, 19845496]

約数ペア:

[(1, 19845496), (2, 9922748), (4, 4961374), (8, 2480687), (11, 1804136), (22, 902068), (44, 451034), (61, 325336), (88, 225517), (122, 162668), (244, 81334), (488, 40667), (671, 29576), (1342, 14788), (2684, 7394), (3697, 5368)]