31031728

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21313}}^1$

素因数の和:21341

約数の個数: 40

約数和(自身を含む): 74002208

約数和(自身を除く): 42970480

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 21313, 42626, 85252, 149191, 170504, 277069, 298382, 341008, 554138, 596764, 1108276, 1193528, 1939483, 2216552, 2387056, 3878966, 4433104, 7757932, 15515864, 31031728]

約数ペア:

[(1, 31031728), (2, 15515864), (4, 7757932), (7, 4433104), (8, 3878966), (13, 2387056), (14, 2216552), (16, 1939483), (26, 1193528), (28, 1108276), (52, 596764), (56, 554138), (91, 341008), (104, 298382), (112, 277069), (182, 170504), (208, 149191), (364, 85252), (728, 42626), (1456, 21313)]