21907018

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{7211}}^1$

素因数の和:7258

約数の個数: 24

約数和(自身を含む): 39464064

約数和(自身を除く): 17557046

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 217, 434, 1519, 3038, 7211, 14422, 50477, 100954, 223541, 353339, 447082, 706678, 1564787, 3129574, 10953509, 21907018]

約数ペア:

[(1, 21907018), (2, 10953509), (7, 3129574), (14, 1564787), (31, 706678), (49, 447082), (62, 353339), (98, 223541), (217, 100954), (434, 50477), (1519, 14422), (3038, 7211)]