20404779521

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{739}}^1\times {\mathrm{1151}}^1$

素因数の和:2069

約数の個数: 32

約数和(自身を含む): 24551424000

約数和(自身を除く): 4146644479

約数列:

[1, 7, 23, 149, 161, 739, 1043, 1151, 3427, 5173, 8057, 16997, 23989, 26473, 110111, 118979, 171499, 185311, 770777, 850589, 1200493, 2532553, 3944477, 5954123, 17727871, 19563547, 27611339, 126737761, 136944829, 887164327, 2914968503, 20404779521]

約数ペア:

[(1, 20404779521), (7, 2914968503), (23, 887164327), (149, 136944829), (161, 126737761), (739, 27611339), (1043, 19563547), (1151, 17727871), (3427, 5954123), (5173, 3944477), (8057, 2532553), (16997, 1200493), (23989, 850589), (26473, 770777), (110111, 185311), (118979, 171499)]