18415768

素因数分解:

$2^3\times 7^2\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 40629600

約数和(自身を除く): 22213832

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 109, 196, 218, 392, 431, 436, 763, 862, 872, 1526, 1724, 3017, 3052, 3448, 5341, 6034, 6104, 10682, 12068, 21119, 21364, 24136, 42238, 42728, 46979, 84476, 93958, 168952, 187916, 328853, 375832, 657706, 1315412, 2301971, 2630824, 4603942, 9207884, 18415768]

約数ペア:

[(1, 18415768), (2, 9207884), (4, 4603942), (7, 2630824), (8, 2301971), (14, 1315412), (28, 657706), (49, 375832), (56, 328853), (98, 187916), (109, 168952), (196, 93958), (218, 84476), (392, 46979), (431, 42728), (436, 42238), (763, 24136), (862, 21364), (872, 21119), (1526, 12068), (1724, 10682), (3017, 6104), (3052, 6034), (3448, 5341)]