19749128

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4831}}^1$

素因数の和:4917

約数の個数: 32

約数和(自身を含む): 42908160

約数和(自身を除く): 23159032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 4831, 9662, 19324, 33817, 38648, 67634, 135268, 270536, 352663, 705326, 1410652, 2468641, 2821304, 4937282, 9874564, 19749128]

約数ペア:

[(1, 19749128), (2, 9874564), (4, 4937282), (7, 2821304), (8, 2468641), (14, 1410652), (28, 705326), (56, 352663), (73, 270536), (146, 135268), (292, 67634), (511, 38648), (584, 33817), (1022, 19324), (2044, 9662), (4088, 4831)]