19897009741

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1\times {\mathrm{4831}}^1$

素因数の和:5209

約数の個数: 32

約数和(自身を含む): 24214118400

約数和(自身を除く): 4317108659

約数列:

[1, 7, 19, 133, 173, 179, 1211, 1253, 3287, 3401, 4831, 23009, 23807, 30967, 33817, 91789, 216769, 588373, 642523, 835763, 864749, 4118611, 5850341, 6053243, 15879497, 16430231, 111156479, 115011617, 149601577, 1047211039, 2842429963, 19897009741]

約数ペア:

[(1, 19897009741), (7, 2842429963), (19, 1047211039), (133, 149601577), (173, 115011617), (179, 111156479), (1211, 16430231), (1253, 15879497), (3287, 6053243), (3401, 5850341), (4831, 4118611), (23009, 864749), (23807, 835763), (30967, 642523), (33817, 588373), (91789, 216769)]