688345983

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{21871}}^1$

素因数の和:22159

約数の個数: 24

約数和(自身を含む): 1074790080

約数和(自身を除く): 386444097

約数列:

[1, 3, 9, 13, 39, 117, 269, 807, 2421, 3497, 10491, 21871, 31473, 65613, 196839, 284323, 852969, 2558907, 5883299, 17649897, 52949691, 76482887, 229448661, 688345983]

約数ペア:

[(1, 688345983), (3, 229448661), (9, 76482887), (13, 52949691), (39, 17649897), (117, 5883299), (269, 2558907), (807, 852969), (2421, 284323), (3497, 196839), (10491, 65613), (21871, 31473)]