18807607

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 24514560

約数和(自身を除く): 5706953

約数列:

[1, 7, 13, 31, 59, 91, 113, 217, 403, 413, 767, 791, 1469, 1829, 2821, 3503, 5369, 6667, 10283, 12803, 23777, 24521, 45539, 46669, 86671, 166439, 206677, 318773, 606697, 1446739, 2686801, 18807607]

約数ペア:

[(1, 18807607), (7, 2686801), (13, 1446739), (31, 606697), (59, 318773), (91, 206677), (113, 166439), (217, 86671), (403, 46669), (413, 45539), (767, 24521), (791, 23777), (1469, 12803), (1829, 10283), (2821, 6667), (3503, 5369)]