21501292

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{1109}}^1$

素因数の和:1281

約数の個数: 24

約数和(自身を含む): 38974320

約数和(自身を除く): 17473028

約数列:

[1, 2, 4, 37, 74, 131, 148, 262, 524, 1109, 2218, 4436, 4847, 9694, 19388, 41033, 82066, 145279, 164132, 290558, 581116, 5375323, 10750646, 21501292]

約数ペア:

[(1, 21501292), (2, 10750646), (4, 5375323), (37, 581116), (74, 290558), (131, 164132), (148, 145279), (262, 82066), (524, 41033), (1109, 19388), (2218, 9694), (4436, 4847)]