21235080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{569}}^1$

素因数の和:894

約数の個数: 64

約数和(自身を含む): 64022400

約数和(自身を除く): 42787320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 311, 569, 622, 933, 1138, 1244, 1555, 1707, 1866, 2276, 2488, 2845, 3110, 3414, 3732, 4552, 4665, 5690, 6220, 6828, 7464, 8535, 9330, 11380, 12440, 13656, 17070, 18660, 22760, 34140, 37320, 68280, 176959, 353918, 530877, 707836, 884795, 1061754, 1415672, 1769590, 2123508, 2654385, 3539180, 4247016, 5308770, 7078360, 10617540, 21235080]

約数ペア:

[(1, 21235080), (2, 10617540), (3, 7078360), (4, 5308770), (5, 4247016), (6, 3539180), (8, 2654385), (10, 2123508), (12, 1769590), (15, 1415672), (20, 1061754), (24, 884795), (30, 707836), (40, 530877), (60, 353918), (120, 176959), (311, 68280), (569, 37320), (622, 34140), (933, 22760), (1138, 18660), (1244, 17070), (1555, 13656), (1707, 12440), (1866, 11380), (2276, 9330), (2488, 8535), (2845, 7464), (3110, 6828), (3414, 6220), (3732, 5690), (4552, 4665)]