17905641

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 9673239

約数列:

[1, 3, 13, 17, 39, 51, 113, 221, 239, 339, 663, 717, 1469, 1921, 3107, 4063, 4407, 5763, 9321, 12189, 24973, 27007, 52819, 74919, 81021, 158457, 351091, 459119, 1053273, 1377357, 5968547, 17905641]

約数ペア:

[(1, 17905641), (3, 5968547), (13, 1377357), (17, 1053273), (39, 459119), (51, 351091), (113, 158457), (221, 81021), (239, 74919), (339, 52819), (663, 27007), (717, 24973), (1469, 12189), (1921, 9321), (3107, 5763), (4063, 4407)]