21189528

素因数分解:

$2^3\times 3^2\times {\mathrm{151}}^1\times {\mathrm{1949}}^1$

素因数の和:2112

約数の個数: 48

約数和(自身を含む): 57798000

約数和(自身を除く): 36608472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 151, 302, 453, 604, 906, 1208, 1359, 1812, 1949, 2718, 3624, 3898, 5436, 5847, 7796, 10872, 11694, 15592, 17541, 23388, 35082, 46776, 70164, 140328, 294299, 588598, 882897, 1177196, 1765794, 2354392, 2648691, 3531588, 5297382, 7063176, 10594764, 21189528]

約数ペア:

[(1, 21189528), (2, 10594764), (3, 7063176), (4, 5297382), (6, 3531588), (8, 2648691), (9, 2354392), (12, 1765794), (18, 1177196), (24, 882897), (36, 588598), (72, 294299), (151, 140328), (302, 70164), (453, 46776), (604, 35082), (906, 23388), (1208, 17541), (1359, 15592), (1812, 11694), (1949, 10872), (2718, 7796), (3624, 5847), (3898, 5436)]