21307428

素因数分解:

$2^2\times 3^3\times {\mathrm{83}}^1\times {\mathrm{2377}}^1$

素因数の和:2473

約数の個数: 48

約数和(自身を含む): 55930560

約数和(自身を除く): 34623132

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 83, 108, 166, 249, 332, 498, 747, 996, 1494, 2241, 2377, 2988, 4482, 4754, 7131, 8964, 9508, 14262, 21393, 28524, 42786, 64179, 85572, 128358, 197291, 256716, 394582, 591873, 789164, 1183746, 1775619, 2367492, 3551238, 5326857, 7102476, 10653714, 21307428]

約数ペア:

[(1, 21307428), (2, 10653714), (3, 7102476), (4, 5326857), (6, 3551238), (9, 2367492), (12, 1775619), (18, 1183746), (27, 789164), (36, 591873), (54, 394582), (83, 256716), (108, 197291), (166, 128358), (249, 85572), (332, 64179), (498, 42786), (747, 28524), (996, 21393), (1494, 14262), (2241, 9508), (2377, 8964), (2988, 7131), (4482, 4754)]