20837515

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{1097}}^1$

素因数の和:1262

約数の個数: 16

約数和(自身を含む): 26088480

約数和(自身を除く): 5250965

約数列:

[1, 5, 29, 131, 145, 655, 1097, 3799, 5485, 18995, 31813, 143707, 159065, 718535, 4167503, 20837515]

約数ペア:

[(1, 20837515), (5, 4167503), (29, 718535), (131, 159065), (145, 143707), (655, 31813), (1097, 18995), (3799, 5485)]