21506777

素因数分解:

${\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:616

約数の個数: 16

約数和(自身を含む): 23500800

約数和(自身を除く): 1994023

約数列:

[1, 29, 31, 47, 509, 899, 1363, 1457, 14761, 15779, 23923, 42253, 457591, 693767, 741613, 21506777]

約数ペア:

[(1, 21506777), (29, 741613), (31, 693767), (47, 457591), (509, 42253), (899, 23923), (1363, 15779), (1457, 14761)]