21988944

素因数分解:

$2^4\times 3^2\times {\mathrm{311}}^1\times {\mathrm{491}}^1$

素因数の和:816

約数の個数: 60

約数和(自身を含む): 61862112

約数和(自身を除く): 39873168

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 311, 491, 622, 933, 982, 1244, 1473, 1866, 1964, 2488, 2799, 2946, 3732, 3928, 4419, 4976, 5598, 5892, 7464, 7856, 8838, 11196, 11784, 14928, 17676, 22392, 23568, 35352, 44784, 70704, 152701, 305402, 458103, 610804, 916206, 1221608, 1374309, 1832412, 2443216, 2748618, 3664824, 5497236, 7329648, 10994472, 21988944]

約数ペア:

[(1, 21988944), (2, 10994472), (3, 7329648), (4, 5497236), (6, 3664824), (8, 2748618), (9, 2443216), (12, 1832412), (16, 1374309), (18, 1221608), (24, 916206), (36, 610804), (48, 458103), (72, 305402), (144, 152701), (311, 70704), (491, 44784), (622, 35352), (933, 23568), (982, 22392), (1244, 17676), (1473, 14928), (1866, 11784), (1964, 11196), (2488, 8838), (2799, 7856), (2946, 7464), (3732, 5892), (3928, 5598), (4419, 4976)]