19271615

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 26542080

約数和(自身を除く): 7270465

約数列:

[1, 5, 11, 31, 55, 89, 127, 155, 341, 445, 635, 979, 1397, 1705, 2759, 3937, 4895, 6985, 11303, 13795, 19685, 30349, 43307, 56515, 124333, 151745, 216535, 350393, 621665, 1751965, 3854323, 19271615]

約数ペア:

[(1, 19271615), (5, 3854323), (11, 1751965), (31, 621665), (55, 350393), (89, 216535), (127, 151745), (155, 124333), (341, 56515), (445, 43307), (635, 30349), (979, 19685), (1397, 13795), (1705, 11303), (2759, 6985), (3937, 4895)]