155897679

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{390721}}^1$

素因数の和:390750

約数の個数: 16

約数和(自身を含む): 250062080

約数和(自身を除く): 94164401

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 390721, 1172163, 2735047, 7423699, 8205141, 22271097, 51965893, 155897679]

約数ペア:

[(1, 155897679), (3, 51965893), (7, 22271097), (19, 8205141), (21, 7423699), (57, 2735047), (133, 1172163), (399, 390721)]