21329908

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{863}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 38610432

約数和(自身を除く): 17280524

約数列:

[1, 2, 4, 37, 74, 148, 167, 334, 668, 863, 1726, 3452, 6179, 12358, 24716, 31931, 63862, 127724, 144121, 288242, 576484, 5332477, 10664954, 21329908]

約数ペア:

[(1, 21329908), (2, 10664954), (4, 5332477), (37, 576484), (74, 288242), (148, 144121), (167, 127724), (334, 63862), (668, 31931), (863, 24716), (1726, 12358), (3452, 6179)]