21561354

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 48294792

約数和(自身を除く): 26733438

約数列:

[1, 2, 3, 6, 9, 18, 53, 97, 106, 159, 194, 233, 291, 318, 466, 477, 582, 699, 873, 954, 1398, 1746, 2097, 4194, 5141, 10282, 12349, 15423, 22601, 24698, 30846, 37047, 45202, 46269, 67803, 74094, 92538, 111141, 135606, 203409, 222282, 406818, 1197853, 2395706, 3593559, 7187118, 10780677, 21561354]

約数ペア:

[(1, 21561354), (2, 10780677), (3, 7187118), (6, 3593559), (9, 2395706), (18, 1197853), (53, 406818), (97, 222282), (106, 203409), (159, 135606), (194, 111141), (233, 92538), (291, 74094), (318, 67803), (466, 46269), (477, 45202), (582, 37047), (699, 30846), (873, 24698), (954, 22601), (1398, 15423), (1746, 12349), (2097, 10282), (4194, 5141)]