20123637569

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1\times {\mathrm{499}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 24514560000

約数和(自身を除く): 4390922431

約数列:

[1, 7, 31, 49, 139, 191, 217, 499, 973, 1337, 1519, 3493, 4309, 5921, 6811, 9359, 15469, 24451, 26549, 30163, 41447, 69361, 95309, 108283, 185843, 211141, 290129, 485527, 667163, 757981, 823019, 1300901, 2150191, 2954579, 3398689, 4670141, 5761133, 13247951, 15051337, 20682053, 40327931, 92735657, 105359359, 144774371, 410686481, 649149599, 2874805367, 20123637569]

約数ペア:

[(1, 20123637569), (7, 2874805367), (31, 649149599), (49, 410686481), (139, 144774371), (191, 105359359), (217, 92735657), (499, 40327931), (973, 20682053), (1337, 15051337), (1519, 13247951), (3493, 5761133), (4309, 4670141), (5921, 3398689), (6811, 2954579), (9359, 2150191), (15469, 1300901), (24451, 823019), (26549, 757981), (30163, 667163), (41447, 485527), (69361, 290129), (95309, 211141), (108283, 185843)]