19445478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 42725376

約数和(自身を除く): 23279898

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 127, 151, 169, 254, 302, 338, 381, 453, 507, 762, 906, 1014, 1651, 1963, 3302, 3926, 4953, 5889, 9906, 11778, 19177, 21463, 25519, 38354, 42926, 51038, 57531, 64389, 76557, 115062, 128778, 153114, 249301, 498602, 747903, 1495806, 3240913, 6481826, 9722739, 19445478]

約数ペア:

[(1, 19445478), (2, 9722739), (3, 6481826), (6, 3240913), (13, 1495806), (26, 747903), (39, 498602), (78, 249301), (127, 153114), (151, 128778), (169, 115062), (254, 76557), (302, 64389), (338, 57531), (381, 51038), (453, 42926), (507, 38354), (762, 25519), (906, 21463), (1014, 19177), (1651, 11778), (1963, 9906), (3302, 5889), (3926, 4953)]