398121478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{197677}}^1$

素因数の和:197751

約数の個数: 16

約数和(自身を含む): 640476720

約数和(自身を除く): 242355242

約数列:

[1, 2, 19, 38, 53, 106, 1007, 2014, 197677, 395354, 3755863, 7511726, 10476881, 20953762, 199060739, 398121478]

約数ペア:

[(1, 398121478), (2, 199060739), (19, 20953762), (38, 10476881), (53, 7511726), (106, 3755863), (1007, 395354), (2014, 197677)]