21699902

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67391}}^1$

素因数の和:67423

約数の個数: 16

約数和(自身を含む): 38817792

約数和(自身を除く): 17117890

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 67391, 134782, 471737, 943474, 1549993, 3099986, 10849951, 21699902]

約数ペア:

[(1, 21699902), (2, 10849951), (7, 3099986), (14, 1549993), (23, 943474), (46, 471737), (161, 134782), (322, 67391)]