18947778

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{271}}^2$

素因数の和:590

約数の個数: 24

約数和(自身を含む): 38920464

約数和(自身を除く): 19972686

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 271, 542, 813, 1626, 11653, 23306, 34959, 69918, 73441, 146882, 220323, 440646, 3157963, 6315926, 9473889, 18947778]

約数ペア:

[(1, 18947778), (2, 9473889), (3, 6315926), (6, 3157963), (43, 440646), (86, 220323), (129, 146882), (258, 73441), (271, 69918), (542, 34959), (813, 23306), (1626, 11653)]