21523972

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{5189}}^1$

素因数の和:5271

約数の個数: 24

約数和(自身を含む): 40544280

約数和(自身を除く): 19020308

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 5189, 10378, 20756, 88213, 176426, 316529, 352852, 633058, 1266116, 5380993, 10761986, 21523972]

約数ペア:

[(1, 21523972), (2, 10761986), (4, 5380993), (17, 1266116), (34, 633058), (61, 352852), (68, 316529), (122, 176426), (244, 88213), (1037, 20756), (2074, 10378), (4148, 5189)]