19686078

素因数分解:

$2^1\times 3^4\times {\mathrm{137}}^1\times {\mathrm{887}}^1$

素因数の和:1038

約数の個数: 40

約数和(自身を含む): 44483472

約数和(自身を除く): 24797394

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 137, 162, 274, 411, 822, 887, 1233, 1774, 2466, 2661, 3699, 5322, 7398, 7983, 11097, 15966, 22194, 23949, 47898, 71847, 121519, 143694, 243038, 364557, 729114, 1093671, 2187342, 3281013, 6562026, 9843039, 19686078]

約数ペア:

[(1, 19686078), (2, 9843039), (3, 6562026), (6, 3281013), (9, 2187342), (18, 1093671), (27, 729114), (54, 364557), (81, 243038), (137, 143694), (162, 121519), (274, 71847), (411, 47898), (822, 23949), (887, 22194), (1233, 15966), (1774, 11097), (2466, 7983), (2661, 7398), (3699, 5322)]