21418934

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{9907}}^1$

素因数の和:9979

約数の個数: 16

約数和(自身を含む): 34242048

約数和(自身を除く): 12823114

約数列:

[1, 2, 23, 46, 47, 94, 1081, 2162, 9907, 19814, 227861, 455722, 465629, 931258, 10709467, 21418934]

約数ペア:

[(1, 21418934), (2, 10709467), (23, 931258), (46, 465629), (47, 455722), (94, 227861), (1081, 19814), (2162, 9907)]