18596991

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{367}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 30146560

約数和(自身を除く): 11549569

約数列:

[1, 3, 7, 19, 21, 57, 127, 133, 367, 381, 399, 889, 1101, 2413, 2569, 2667, 6973, 7239, 7707, 16891, 20919, 46609, 48811, 50673, 139827, 146433, 326263, 885571, 978789, 2656713, 6198997, 18596991]

約数ペア:

[(1, 18596991), (3, 6198997), (7, 2656713), (19, 978789), (21, 885571), (57, 326263), (127, 146433), (133, 139827), (367, 50673), (381, 48811), (399, 46609), (889, 20919), (1101, 16891), (2413, 7707), (2569, 7239), (2667, 6973)]