21475377

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 41614560

約数和(自身を除く): 20139183

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 49, 57, 63, 77, 99, 133, 147, 171, 209, 231, 233, 399, 441, 539, 627, 693, 699, 931, 1197, 1463, 1617, 1631, 1881, 2097, 2563, 2793, 4389, 4427, 4851, 4893, 7689, 8379, 10241, 11417, 13167, 13281, 14679, 17941, 23067, 30723, 30989, 34251, 39843, 48697, 53823, 92169, 92967, 102753, 125587, 146091, 161469, 216923, 278901, 340879, 376761, 438273, 650769, 1022637, 1130283, 1952307, 2386153, 3067911, 7158459, 21475377]

約数ペア:

[(1, 21475377), (3, 7158459), (7, 3067911), (9, 2386153), (11, 1952307), (19, 1130283), (21, 1022637), (33, 650769), (49, 438273), (57, 376761), (63, 340879), (77, 278901), (99, 216923), (133, 161469), (147, 146091), (171, 125587), (209, 102753), (231, 92967), (233, 92169), (399, 53823), (441, 48697), (539, 39843), (627, 34251), (693, 30989), (699, 30723), (931, 23067), (1197, 17941), (1463, 14679), (1617, 13281), (1631, 13167), (1881, 11417), (2097, 10241), (2563, 8379), (2793, 7689), (4389, 4893), (4427, 4851)]