131309759

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:495

約数の個数: 24

約数和(自身を含む): 156739968

約数和(自身を除く): 25430209

約数列:

[1, 7, 49, 61, 197, 223, 427, 1379, 1561, 2989, 9653, 10927, 12017, 13603, 43931, 84119, 95221, 307517, 588833, 666547, 2152619, 2679791, 18758537, 131309759]

約数ペア:

[(1, 131309759), (7, 18758537), (49, 2679791), (61, 2152619), (197, 666547), (223, 588833), (427, 307517), (1379, 95221), (1561, 84119), (2989, 43931), (9653, 13603), (10927, 12017)]