21138544

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5101}}^1$

素因数の和:5153

約数の個数: 40

約数和(自身を含む): 48081248

約数和(自身を除く): 26942704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 4144, 5101, 10202, 20404, 35707, 40808, 71414, 81616, 142828, 188737, 285656, 377474, 571312, 754948, 1321159, 1509896, 2642318, 3019792, 5284636, 10569272, 21138544]

約数ペア:

[(1, 21138544), (2, 10569272), (4, 5284636), (7, 3019792), (8, 2642318), (14, 1509896), (16, 1321159), (28, 754948), (37, 571312), (56, 377474), (74, 285656), (112, 188737), (148, 142828), (259, 81616), (296, 71414), (518, 40808), (592, 35707), (1036, 20404), (2072, 10202), (4144, 5101)]