19620573

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 30990336

約数和(自身を除く): 11369763

約数列:

[1, 3, 7, 21, 47, 103, 141, 193, 309, 329, 579, 721, 987, 1351, 2163, 4053, 4841, 9071, 14523, 19879, 27213, 33887, 59637, 63497, 101661, 139153, 190491, 417459, 934313, 2802939, 6540191, 19620573]

約数ペア:

[(1, 19620573), (3, 6540191), (7, 2802939), (21, 934313), (47, 417459), (103, 190491), (141, 139153), (193, 101661), (309, 63497), (329, 59637), (579, 33887), (721, 27213), (987, 19879), (1351, 14523), (2163, 9071), (4053, 4841)]