18418088

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{433}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 37367400

約数和(自身を除く): 18949312

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 409, 433, 818, 866, 1636, 1732, 3272, 3464, 5317, 5629, 10634, 11258, 21268, 22516, 42536, 45032, 177097, 354194, 708388, 1416776, 2302261, 4604522, 9209044, 18418088]

約数ペア:

[(1, 18418088), (2, 9209044), (4, 4604522), (8, 2302261), (13, 1416776), (26, 708388), (52, 354194), (104, 177097), (409, 45032), (433, 42536), (818, 22516), (866, 21268), (1636, 11258), (1732, 10634), (3272, 5629), (3464, 5317)]