20282938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:562

約数の個数: 32

約数和(自身を含む): 35093520

約数和(自身を除く): 14810582

約数列:

[1, 2, 13, 17, 26, 34, 109, 218, 221, 421, 442, 842, 1417, 1853, 2834, 3706, 5473, 7157, 10946, 14314, 24089, 45889, 48178, 91778, 93041, 186082, 596557, 780113, 1193114, 1560226, 10141469, 20282938]

約数ペア:

[(1, 20282938), (2, 10141469), (13, 1560226), (17, 1193114), (26, 780113), (34, 596557), (109, 186082), (218, 93041), (221, 91778), (421, 48178), (442, 45889), (842, 24089), (1417, 14314), (1853, 10946), (2834, 7157), (3706, 5473)]