21143664

素因数分解:

$2^4\times 3^2\times {\mathrm{359}}^1\times {\mathrm{409}}^1$

素因数の和:782

約数の個数: 60

約数和(自身を含む): 59482800

約数和(自身を除く): 38339136

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 359, 409, 718, 818, 1077, 1227, 1436, 1636, 2154, 2454, 2872, 3231, 3272, 3681, 4308, 4908, 5744, 6462, 6544, 7362, 8616, 9816, 12924, 14724, 17232, 19632, 25848, 29448, 51696, 58896, 146831, 293662, 440493, 587324, 880986, 1174648, 1321479, 1761972, 2349296, 2642958, 3523944, 5285916, 7047888, 10571832, 21143664]

約数ペア:

[(1, 21143664), (2, 10571832), (3, 7047888), (4, 5285916), (6, 3523944), (8, 2642958), (9, 2349296), (12, 1761972), (16, 1321479), (18, 1174648), (24, 880986), (36, 587324), (48, 440493), (72, 293662), (144, 146831), (359, 58896), (409, 51696), (718, 29448), (818, 25848), (1077, 19632), (1227, 17232), (1436, 14724), (1636, 12924), (2154, 9816), (2454, 8616), (2872, 7362), (3231, 6544), (3272, 6462), (3681, 5744), (4308, 4908)]