18940786872

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{505573}}^1$

素因数の和:505812

約数の個数: 64

約数和(自身を含む): 54359316480

約数和(自身を除く): 35418529608

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 223, 446, 669, 892, 1338, 1561, 1784, 2676, 3122, 4683, 5352, 6244, 9366, 12488, 18732, 37464, 505573, 1011146, 1516719, 2022292, 3033438, 3539011, 4044584, 6066876, 7078022, 10617033, 12133752, 14156044, 21234066, 28312088, 42468132, 84936264, 112742779, 225485558, 338228337, 450971116, 676456674, 789199453, 901942232, 1352913348, 1578398906, 2367598359, 2705826696, 3156797812, 4735196718, 6313595624, 9470393436, 18940786872]

約数ペア:

[(1, 18940786872), (2, 9470393436), (3, 6313595624), (4, 4735196718), (6, 3156797812), (7, 2705826696), (8, 2367598359), (12, 1578398906), (14, 1352913348), (21, 901942232), (24, 789199453), (28, 676456674), (42, 450971116), (56, 338228337), (84, 225485558), (168, 112742779), (223, 84936264), (446, 42468132), (669, 28312088), (892, 21234066), (1338, 14156044), (1561, 12133752), (1784, 10617033), (2676, 7078022), (3122, 6066876), (4683, 4044584), (5352, 3539011), (6244, 3033438), (9366, 2022292), (12488, 1516719), (18732, 1011146), (37464, 505573)]