20791628

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 43201536

約数和(自身を除く): 22409908

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 163, 223, 286, 326, 446, 572, 652, 892, 1793, 2119, 2453, 2899, 3586, 4238, 4906, 5798, 7172, 8476, 9812, 11596, 23309, 31889, 36349, 46618, 63778, 72698, 93236, 127556, 145396, 399839, 472537, 799678, 945074, 1599356, 1890148, 5197907, 10395814, 20791628]

約数ペア:

[(1, 20791628), (2, 10395814), (4, 5197907), (11, 1890148), (13, 1599356), (22, 945074), (26, 799678), (44, 472537), (52, 399839), (143, 145396), (163, 127556), (223, 93236), (286, 72698), (326, 63778), (446, 46618), (572, 36349), (652, 31889), (892, 23309), (1793, 11596), (2119, 9812), (2453, 8476), (2899, 7172), (3586, 5798), (4238, 4906)]