20565618

素因数分解:

$2^1\times 3^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:466

約数の個数: 32

約数和(自身を含む): 41969664

約数和(自身を除く): 21404046

約数列:

[1, 2, 3, 6, 127, 137, 197, 254, 274, 381, 394, 411, 591, 762, 822, 1182, 17399, 25019, 26989, 34798, 50038, 52197, 53978, 75057, 80967, 104394, 150114, 161934, 3427603, 6855206, 10282809, 20565618]

約数ペア:

[(1, 20565618), (2, 10282809), (3, 6855206), (6, 3427603), (127, 161934), (137, 150114), (197, 104394), (254, 80967), (274, 75057), (381, 53978), (394, 52197), (411, 50038), (591, 34798), (762, 26989), (822, 25019), (1182, 17399)]