21269038

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{7001}}^1$

素因数の和:7048

約数の個数: 24

約数和(自身を含む): 38314944

約数和(自身を除く): 17045906

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 217, 434, 1519, 3038, 7001, 14002, 49007, 98014, 217031, 343049, 434062, 686098, 1519217, 3038434, 10634519, 21269038]

約数ペア:

[(1, 21269038), (2, 10634519), (7, 3038434), (14, 1519217), (31, 686098), (49, 434062), (62, 343049), (98, 217031), (217, 98014), (434, 49007), (1519, 14002), (3038, 7001)]