18711238

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{773}}^1$

素因数の和:821

約数の個数: 48

約数和(自身を含む): 37059120

約数和(自身を除く): 18347882

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 91, 98, 133, 182, 247, 266, 494, 637, 773, 931, 1274, 1546, 1729, 1862, 3458, 5411, 10049, 10822, 12103, 14687, 20098, 24206, 29374, 37877, 70343, 75754, 102809, 140686, 190931, 205618, 381862, 492401, 719663, 984802, 1336517, 1439326, 2673034, 9355619, 18711238]

約数ペア:

[(1, 18711238), (2, 9355619), (7, 2673034), (13, 1439326), (14, 1336517), (19, 984802), (26, 719663), (38, 492401), (49, 381862), (91, 205618), (98, 190931), (133, 140686), (182, 102809), (247, 75754), (266, 70343), (494, 37877), (637, 29374), (773, 24206), (931, 20098), (1274, 14687), (1546, 12103), (1729, 10822), (1862, 10049), (3458, 5411)]