21639888

素因数分解:

$2^4\times 3^2\times {\mathrm{103}}^1\times {\mathrm{1459}}^1$

素因数の和:1576

約数の個数: 60

約数和(自身を含む): 61191520

約数和(自身を除く): 39551632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 103, 144, 206, 309, 412, 618, 824, 927, 1236, 1459, 1648, 1854, 2472, 2918, 3708, 4377, 4944, 5836, 7416, 8754, 11672, 13131, 14832, 17508, 23344, 26262, 35016, 52524, 70032, 105048, 150277, 210096, 300554, 450831, 601108, 901662, 1202216, 1352493, 1803324, 2404432, 2704986, 3606648, 5409972, 7213296, 10819944, 21639888]

約数ペア:

[(1, 21639888), (2, 10819944), (3, 7213296), (4, 5409972), (6, 3606648), (8, 2704986), (9, 2404432), (12, 1803324), (16, 1352493), (18, 1202216), (24, 901662), (36, 601108), (48, 450831), (72, 300554), (103, 210096), (144, 150277), (206, 105048), (309, 70032), (412, 52524), (618, 35016), (824, 26262), (927, 23344), (1236, 17508), (1459, 14832), (1648, 13131), (1854, 11672), (2472, 8754), (2918, 7416), (3708, 5836), (4377, 4944)]