21667128

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{128971}}^1$

素因数の和:128987

約数の個数: 32

約数和(自身を含む): 61906560

約数和(自身を除く): 40239432

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 128971, 257942, 386913, 515884, 773826, 902797, 1031768, 1547652, 1805594, 2708391, 3095304, 3611188, 5416782, 7222376, 10833564, 21667128]

約数ペア:

[(1, 21667128), (2, 10833564), (3, 7222376), (4, 5416782), (6, 3611188), (7, 3095304), (8, 2708391), (12, 1805594), (14, 1547652), (21, 1031768), (24, 902797), (28, 773826), (42, 515884), (56, 386913), (84, 257942), (168, 128971)]