19657203

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{821}}^1$

素因数の和:1194

約数の個数: 16

約数和(自身を含む): 27461376

約数和(自身を除く): 7804173

約数列:

[1, 3, 23, 69, 347, 821, 1041, 2463, 7981, 18883, 23943, 56649, 284887, 854661, 6552401, 19657203]

約数ペア:

[(1, 19657203), (3, 6552401), (23, 854661), (69, 284887), (347, 56649), (821, 23943), (1041, 18883), (2463, 7981)]