21182744

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 44368800

約数和(自身を除く): 23186056

約数列:

[1, 2, 4, 8, 11, 22, 44, 79, 88, 121, 158, 242, 277, 316, 484, 554, 632, 869, 968, 1108, 1738, 2216, 3047, 3476, 6094, 6952, 9559, 12188, 19118, 21883, 24376, 33517, 38236, 43766, 67034, 76472, 87532, 134068, 175064, 240713, 268136, 481426, 962852, 1925704, 2647843, 5295686, 10591372, 21182744]

約数ペア:

[(1, 21182744), (2, 10591372), (4, 5295686), (8, 2647843), (11, 1925704), (22, 962852), (44, 481426), (79, 268136), (88, 240713), (121, 175064), (158, 134068), (242, 87532), (277, 76472), (316, 67034), (484, 43766), (554, 38236), (632, 33517), (869, 24376), (968, 21883), (1108, 19118), (1738, 12188), (2216, 9559), (3047, 6952), (3476, 6094)]