21085208

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{85021}}^1$

素因数の和:85058

約数の個数: 16

約数和(自身を含む): 40810560

約数和(自身を除く): 19725352

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 85021, 170042, 340084, 680168, 2635651, 5271302, 10542604, 21085208]

約数ペア:

[(1, 21085208), (2, 10542604), (4, 5271302), (8, 2635651), (31, 680168), (62, 340084), (124, 170042), (248, 85021)]