21999164

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{13513}}^1$

素因数の和:13565

約数の個数: 24

約数和(自身を含む): 43136688

約数和(自身を除く): 21137524

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 13513, 27026, 54052, 148643, 297286, 499981, 594572, 999962, 1999924, 5499791, 10999582, 21999164]

約数ペア:

[(1, 21999164), (2, 10999582), (4, 5499791), (11, 1999924), (22, 999962), (37, 594572), (44, 499981), (74, 297286), (148, 148643), (407, 54052), (814, 27026), (1628, 13513)]