21403184

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{121609}}^1$

素因数の和:121628

約数の個数: 20

約数和(自身を含む): 45238920

約数和(自身を除く): 23835736

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 121609, 243218, 486436, 972872, 1337699, 1945744, 2675398, 5350796, 10701592, 21403184]

約数ペア:

[(1, 21403184), (2, 10701592), (4, 5350796), (8, 2675398), (11, 1945744), (16, 1337699), (22, 972872), (44, 486436), (88, 243218), (176, 121609)]