19905996

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{7937}}^1$

素因数の和:7974

約数の個数: 48

約数和(自身を含む): 53343360

約数和(自身を除く): 33437364

約数列:

[1, 2, 3, 4, 6, 11, 12, 19, 22, 33, 38, 44, 57, 66, 76, 114, 132, 209, 228, 418, 627, 836, 1254, 2508, 7937, 15874, 23811, 31748, 47622, 87307, 95244, 150803, 174614, 261921, 301606, 349228, 452409, 523842, 603212, 904818, 1047684, 1658833, 1809636, 3317666, 4976499, 6635332, 9952998, 19905996]

約数ペア:

[(1, 19905996), (2, 9952998), (3, 6635332), (4, 4976499), (6, 3317666), (11, 1809636), (12, 1658833), (19, 1047684), (22, 904818), (33, 603212), (38, 523842), (44, 452409), (57, 349228), (66, 301606), (76, 261921), (114, 174614), (132, 150803), (209, 95244), (228, 87307), (418, 47622), (627, 31748), (836, 23811), (1254, 15874), (2508, 7937)]