21557994

素因数分解:

$2^1\times 3^1\times {\mathrm{79}}^1\times {\mathrm{45481}}^1$

素因数の和:45565

約数の個数: 16

約数和(自身を含む): 43662720

約数和(自身を除く): 22104726

約数列:

[1, 2, 3, 6, 79, 158, 237, 474, 45481, 90962, 136443, 272886, 3592999, 7185998, 10778997, 21557994]

約数ペア:

[(1, 21557994), (2, 10778997), (3, 7185998), (6, 3592999), (79, 272886), (158, 136443), (237, 90962), (474, 45481)]