21124278

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{359}}^1\times {\mathrm{467}}^1$

素因数の和:841

約数の個数: 48

約数和(自身を含む): 52565760

約数和(自身を除く): 31441482

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 359, 467, 718, 934, 1077, 1401, 2154, 2513, 2802, 3231, 3269, 4203, 5026, 6462, 6538, 7539, 8406, 9807, 15078, 19614, 22617, 29421, 45234, 58842, 167653, 335306, 502959, 1005918, 1173571, 1508877, 2347142, 3017754, 3520713, 7041426, 10562139, 21124278]

約数ペア:

[(1, 21124278), (2, 10562139), (3, 7041426), (6, 3520713), (7, 3017754), (9, 2347142), (14, 1508877), (18, 1173571), (21, 1005918), (42, 502959), (63, 335306), (126, 167653), (359, 58842), (467, 45234), (718, 29421), (934, 22617), (1077, 19614), (1401, 15078), (2154, 9807), (2513, 8406), (2802, 7539), (3231, 6538), (3269, 6462), (4203, 5026)]