66720039

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{223}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 97843200

約数和(自身を除く): 31123161

約数列:

[1, 3, 19, 29, 57, 87, 181, 223, 543, 551, 669, 1653, 3439, 4237, 5249, 6467, 10317, 12711, 15747, 19401, 40363, 99731, 121089, 122873, 299193, 368619, 766897, 1170527, 2300691, 3511581, 22240013, 66720039]

約数ペア:

[(1, 66720039), (3, 22240013), (19, 3511581), (29, 2300691), (57, 1170527), (87, 766897), (181, 368619), (223, 299193), (543, 122873), (551, 121089), (669, 99731), (1653, 40363), (3439, 19401), (4237, 15747), (5249, 12711), (6467, 10317)]