21238320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88493}}^1$

素因数の和:88509

約数の個数: 40

約数和(自身を含む): 65839536

約数和(自身を除く): 44601216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88493, 176986, 265479, 353972, 442465, 530958, 707944, 884930, 1061916, 1327395, 1415888, 1769860, 2123832, 2654790, 3539720, 4247664, 5309580, 7079440, 10619160, 21238320]

約数ペア:

[(1, 21238320), (2, 10619160), (3, 7079440), (4, 5309580), (5, 4247664), (6, 3539720), (8, 2654790), (10, 2123832), (12, 1769860), (15, 1415888), (16, 1327395), (20, 1061916), (24, 884930), (30, 707944), (40, 530958), (48, 442465), (60, 353972), (80, 265479), (120, 176986), (240, 88493)]