21006744

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1693}}^1$

素因数の和:1760

約数の個数: 64

約数和(自身を含む): 58544640

約数和(自身を除く): 37537896

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 47, 66, 88, 94, 132, 141, 188, 264, 282, 376, 517, 564, 1034, 1128, 1551, 1693, 2068, 3102, 3386, 4136, 5079, 6204, 6772, 10158, 12408, 13544, 18623, 20316, 37246, 40632, 55869, 74492, 79571, 111738, 148984, 159142, 223476, 238713, 318284, 446952, 477426, 636568, 875281, 954852, 1750562, 1909704, 2625843, 3501124, 5251686, 7002248, 10503372, 21006744]

約数ペア:

[(1, 21006744), (2, 10503372), (3, 7002248), (4, 5251686), (6, 3501124), (8, 2625843), (11, 1909704), (12, 1750562), (22, 954852), (24, 875281), (33, 636568), (44, 477426), (47, 446952), (66, 318284), (88, 238713), (94, 223476), (132, 159142), (141, 148984), (188, 111738), (264, 79571), (282, 74492), (376, 55869), (517, 40632), (564, 37246), (1034, 20316), (1128, 18623), (1551, 13544), (1693, 12408), (2068, 10158), (3102, 6772), (3386, 6204), (4136, 5079)]