19474221

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 30199680

約数和(自身を除く): 10725459

約数列:

[1, 3, 13, 19, 39, 41, 57, 123, 247, 533, 641, 741, 779, 1599, 1923, 2337, 8333, 10127, 12179, 24999, 26281, 30381, 36537, 78843, 158327, 341653, 474981, 499339, 1024959, 1498017, 6491407, 19474221]

約数ペア:

[(1, 19474221), (3, 6491407), (13, 1498017), (19, 1024959), (39, 499339), (41, 474981), (57, 341653), (123, 158327), (247, 78843), (533, 36537), (641, 30381), (741, 26281), (779, 24999), (1599, 12179), (1923, 10127), (2337, 8333)]