18331029

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:351

約数の個数: 40

約数和(自身を含む): 29601440

約数和(自身を除く): 11270411

約数列:

[1, 3, 9, 19, 27, 43, 57, 81, 129, 171, 277, 387, 513, 817, 831, 1161, 1539, 2451, 2493, 3483, 5263, 7353, 7479, 11911, 15789, 22059, 22437, 35733, 47367, 66177, 107199, 142101, 226309, 321597, 426303, 678927, 964791, 2036781, 6110343, 18331029]

約数ペア:

[(1, 18331029), (3, 6110343), (9, 2036781), (19, 964791), (27, 678927), (43, 426303), (57, 321597), (81, 226309), (129, 142101), (171, 107199), (277, 66177), (387, 47367), (513, 35733), (817, 22437), (831, 22059), (1161, 15789), (1539, 11911), (2451, 7479), (2493, 7353), (3483, 5263)]