19907649

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2477}}^1$

素因数の和:2549

約数の個数: 24

約数和(自身を含む): 30925440

約数和(自身を除く): 11017791

約数列:

[1, 3, 9, 19, 47, 57, 141, 171, 423, 893, 2477, 2679, 7431, 8037, 22293, 47063, 116419, 141189, 349257, 423567, 1047771, 2211961, 6635883, 19907649]

約数ペア:

[(1, 19907649), (3, 6635883), (9, 2211961), (19, 1047771), (47, 423567), (57, 349257), (141, 141189), (171, 116419), (423, 47063), (893, 22293), (2477, 8037), (2679, 7431)]