18320848

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12583}}^1$

素因数の和:12611

約数の個数: 40

約数和(自身を含む): 43691648

約数和(自身を除く): 25370800

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12583, 25166, 50332, 88081, 100664, 163579, 176162, 201328, 327158, 352324, 654316, 704648, 1145053, 1308632, 1409296, 2290106, 2617264, 4580212, 9160424, 18320848]

約数ペア:

[(1, 18320848), (2, 9160424), (4, 4580212), (7, 2617264), (8, 2290106), (13, 1409296), (14, 1308632), (16, 1145053), (26, 704648), (28, 654316), (52, 352324), (56, 327158), (91, 201328), (104, 176162), (112, 163579), (182, 100664), (208, 88081), (364, 50332), (728, 25166), (1456, 12583)]