19704237

素因数分解:

$3^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{1487}}^1$

素因数の和:2128

約数の個数: 16

約数和(自身を含む): 30093312

約数和(自身を除く): 10389075

約数列:

[1, 3, 7, 21, 631, 1487, 1893, 4417, 4461, 10409, 13251, 31227, 938297, 2814891, 6568079, 19704237]

約数ペア:

[(1, 19704237), (3, 6568079), (7, 2814891), (21, 938297), (631, 31227), (1487, 13251), (1893, 10409), (4417, 4461)]