21069155

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{577}}^1$

素因数の和:758

約数の個数: 16

約数和(自身を含む): 25940640

約数和(自身を除く): 4871485

約数列:

[1, 5, 67, 109, 335, 545, 577, 2885, 7303, 36515, 38659, 62893, 193295, 314465, 4213831, 21069155]

約数ペア:

[(1, 21069155), (5, 4213831), (67, 314465), (109, 193295), (335, 62893), (545, 38659), (577, 36515), (2885, 7303)]