20824424

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 40101600

約数和(自身を除く): 19277176

約数列:

[1, 2, 4, 8, 61, 122, 139, 244, 278, 307, 488, 556, 614, 1112, 1228, 2456, 8479, 16958, 18727, 33916, 37454, 42673, 67832, 74908, 85346, 149816, 170692, 341384, 2603053, 5206106, 10412212, 20824424]

約数ペア:

[(1, 20824424), (2, 10412212), (4, 5206106), (8, 2603053), (61, 341384), (122, 170692), (139, 149816), (244, 85346), (278, 74908), (307, 67832), (488, 42673), (556, 37454), (614, 33916), (1112, 18727), (1228, 16958), (2456, 8479)]