21787605410

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{640247}}^1$

素因数の和:640378

約数の個数: 32

約数和(自身を含む): 40658308992

約数和(自身を除く): 18870703582

約数列:

[1, 2, 5, 10, 41, 82, 83, 166, 205, 410, 415, 830, 3403, 6806, 17015, 34030, 640247, 1280494, 3201235, 6402470, 26250127, 52500254, 53140501, 106281002, 131250635, 262501270, 265702505, 531405010, 2178760541, 4357521082, 10893802705, 21787605410]

約数ペア:

[(1, 21787605410), (2, 10893802705), (5, 4357521082), (10, 2178760541), (41, 531405010), (82, 265702505), (83, 262501270), (166, 131250635), (205, 106281002), (410, 53140501), (415, 52500254), (830, 26250127), (3403, 6402470), (6806, 3201235), (17015, 1280494), (34030, 640247)]