21584390128

素因数分解:

$2^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{968431}}^1$

素因数の和:968645

約数の個数: 40

約数和(自身を含む): 48034227200

約数和(自身を除く): 26449837072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 199, 398, 796, 1393, 1592, 2786, 3184, 5572, 11144, 22288, 968431, 1936862, 3873724, 6779017, 7747448, 13558034, 15494896, 27116068, 54232136, 108464272, 192717769, 385435538, 770871076, 1349024383, 1541742152, 2698048766, 3083484304, 5396097532, 10792195064, 21584390128]

約数ペア:

[(1, 21584390128), (2, 10792195064), (4, 5396097532), (7, 3083484304), (8, 2698048766), (14, 1541742152), (16, 1349024383), (28, 770871076), (56, 385435538), (112, 192717769), (199, 108464272), (398, 54232136), (796, 27116068), (1393, 15494896), (1592, 13558034), (2786, 7747448), (3184, 6779017), (5572, 3873724), (11144, 1936862), (22288, 968431)]