21902569

素因数分解:

${\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 24

約数和(自身を含む): 25363800

約数和(自身を除く): 3461231

約数列:

[1, 13, 29, 41, 109, 169, 377, 533, 1189, 1417, 3161, 4469, 4901, 6929, 15457, 18421, 41093, 58097, 129601, 200941, 534209, 755261, 1684813, 21902569]

約数ペア:

[(1, 21902569), (13, 1684813), (29, 755261), (41, 534209), (109, 200941), (169, 129601), (377, 58097), (533, 41093), (1189, 18421), (1417, 15457), (3161, 6929), (4469, 4901)]