19870308

素因数分解:

$2^2\times 3^2\times {\mathrm{73}}^1\times {\mathrm{7561}}^1$

素因数の和:7644

約数の個数: 36

約数和(自身を含む): 50922508

約数和(自身を除く): 31052200

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 73, 146, 219, 292, 438, 657, 876, 1314, 2628, 7561, 15122, 22683, 30244, 45366, 68049, 90732, 136098, 272196, 551953, 1103906, 1655859, 2207812, 3311718, 4967577, 6623436, 9935154, 19870308]

約数ペア:

[(1, 19870308), (2, 9935154), (3, 6623436), (4, 4967577), (6, 3311718), (9, 2207812), (12, 1655859), (18, 1103906), (36, 551953), (73, 272196), (146, 136098), (219, 90732), (292, 68049), (438, 45366), (657, 30244), (876, 22683), (1314, 15122), (2628, 7561)]