21167996

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{911}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 38329536

約数和(自身を除く): 17161540

約数列:

[1, 2, 4, 37, 74, 148, 157, 314, 628, 911, 1822, 3644, 5809, 11618, 23236, 33707, 67414, 134828, 143027, 286054, 572108, 5291999, 10583998, 21167996]

約数ペア:

[(1, 21167996), (2, 10583998), (4, 5291999), (37, 572108), (74, 286054), (148, 143027), (157, 134828), (314, 67414), (628, 33707), (911, 23236), (1822, 11618), (3644, 5809)]