19409819

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:287

約数の個数: 24

約数和(自身を含む): 23479632

約数和(自身を除く): 4069813

約数列:

[1, 11, 13, 53, 143, 169, 197, 583, 689, 1859, 2167, 2561, 7579, 8957, 10441, 28171, 33293, 98527, 114851, 135733, 366223, 1493063, 1764529, 19409819]

約数ペア:

[(1, 19409819), (11, 1764529), (13, 1493063), (53, 366223), (143, 135733), (169, 114851), (197, 98527), (583, 33293), (689, 28171), (1859, 10441), (2167, 8957), (2561, 7579)]