21027804

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1447}}^1$

素因数の和:1634

約数の個数: 48

約数和(自身を含む): 56437248

約数和(自身を除く): 35409444

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 173, 346, 519, 692, 1038, 1211, 1447, 2076, 2422, 2894, 3633, 4341, 4844, 5788, 7266, 8682, 10129, 14532, 17364, 20258, 30387, 40516, 60774, 121548, 250331, 500662, 750993, 1001324, 1501986, 1752317, 3003972, 3504634, 5256951, 7009268, 10513902, 21027804]

約数ペア:

[(1, 21027804), (2, 10513902), (3, 7009268), (4, 5256951), (6, 3504634), (7, 3003972), (12, 1752317), (14, 1501986), (21, 1001324), (28, 750993), (42, 500662), (84, 250331), (173, 121548), (346, 60774), (519, 40516), (692, 30387), (1038, 20258), (1211, 17364), (1447, 14532), (2076, 10129), (2422, 8682), (2894, 7266), (3633, 5788), (4341, 4844)]