21596660

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{8243}}^1$

素因数の和:8383

約数の個数: 24

約数和(自身を含む): 45704736

約数和(自身を除く): 24108076

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 8243, 16486, 32972, 41215, 82430, 164860, 1079833, 2159666, 4319332, 5399165, 10798330, 21596660]

約数ペア:

[(1, 21596660), (2, 10798330), (4, 5399165), (5, 4319332), (10, 2159666), (20, 1079833), (131, 164860), (262, 82430), (524, 41215), (655, 32972), (1310, 16486), (2620, 8243)]