21063911

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 23912448

約数和(自身を除く): 2848537

約数列:

[1, 11, 31, 223, 277, 341, 2453, 3047, 6913, 8587, 61771, 76043, 94457, 679481, 1914901, 21063911]

約数ペア:

[(1, 21063911), (11, 1914901), (31, 679481), (223, 94457), (277, 76043), (341, 61771), (2453, 8587), (3047, 6913)]