16740997

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 21517272

約数和(自身を除く): 4776275

約数列:

[1, 7, 13, 41, 49, 91, 287, 533, 637, 641, 2009, 3731, 4487, 8333, 26117, 26281, 31409, 58331, 183967, 341653, 408317, 1287769, 2391571, 16740997]

約数ペア:

[(1, 16740997), (7, 2391571), (13, 1287769), (41, 408317), (49, 341653), (91, 183967), (287, 58331), (533, 31409), (637, 26281), (641, 26117), (2009, 8333), (3731, 4487)]