19746428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{761}}^1$

素因数の和:1277

約数の個数: 24

約数和(自身を含む): 37338000

約数和(自身を除く): 17591572

約数列:

[1, 2, 4, 13, 26, 52, 499, 761, 998, 1522, 1996, 3044, 6487, 9893, 12974, 19786, 25948, 39572, 379739, 759478, 1518956, 4936607, 9873214, 19746428]

約数ペア:

[(1, 19746428), (2, 9873214), (4, 4936607), (13, 1518956), (26, 759478), (52, 379739), (499, 39572), (761, 25948), (998, 19786), (1522, 12974), (1996, 9893), (3044, 6487)]