19727024

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{541}}^1$

素因数の和:645

約数の個数: 40

約数和(自身を含む): 39921552

約数和(自身を除く): 20194528

約数列:

[1, 2, 4, 8, 16, 43, 53, 86, 106, 172, 212, 344, 424, 541, 688, 848, 1082, 2164, 2279, 4328, 4558, 8656, 9116, 18232, 23263, 28673, 36464, 46526, 57346, 93052, 114692, 186104, 229384, 372208, 458768, 1232939, 2465878, 4931756, 9863512, 19727024]

約数ペア:

[(1, 19727024), (2, 9863512), (4, 4931756), (8, 2465878), (16, 1232939), (43, 458768), (53, 372208), (86, 229384), (106, 186104), (172, 114692), (212, 93052), (344, 57346), (424, 46526), (541, 36464), (688, 28673), (848, 23263), (1082, 18232), (2164, 9116), (2279, 8656), (4328, 4558)]