21351898

素因数分解:

$2^1\times {\mathrm{17}}^3\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:147

約数の個数: 32

約数和(自身を含む): 35516880

約数和(自身を除く): 14164982

約数列:

[1, 2, 17, 34, 41, 53, 82, 106, 289, 578, 697, 901, 1394, 1802, 2173, 4346, 4913, 9826, 11849, 15317, 23698, 30634, 36941, 73882, 201433, 260389, 402866, 520778, 627997, 1255994, 10675949, 21351898]

約数ペア:

[(1, 21351898), (2, 10675949), (17, 1255994), (34, 627997), (41, 520778), (53, 402866), (82, 260389), (106, 201433), (289, 73882), (578, 36941), (697, 30634), (901, 23698), (1394, 15317), (1802, 11849), (2173, 9826), (4346, 4913)]