19519664

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:413

約数の個数: 40

約数和(自身を含む): 39158208

約数和(自身を除く): 19638544

約数列:

[1, 2, 4, 8, 16, 47, 94, 101, 188, 202, 257, 376, 404, 514, 752, 808, 1028, 1616, 2056, 4112, 4747, 9494, 12079, 18988, 24158, 25957, 37976, 48316, 51914, 75952, 96632, 103828, 193264, 207656, 415312, 1219979, 2439958, 4879916, 9759832, 19519664]

約数ペア:

[(1, 19519664), (2, 9759832), (4, 4879916), (8, 2439958), (16, 1219979), (47, 415312), (94, 207656), (101, 193264), (188, 103828), (202, 96632), (257, 75952), (376, 51914), (404, 48316), (514, 37976), (752, 25957), (808, 24158), (1028, 18988), (1616, 12079), (2056, 9494), (4112, 4747)]