21080462

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 36220800

約数和(自身を除く): 15140338

約数列:

[1, 2, 13, 19, 26, 38, 139, 247, 278, 307, 494, 614, 1807, 2641, 3614, 3991, 5282, 5833, 7982, 11666, 34333, 42673, 68666, 75829, 85346, 151658, 554749, 810787, 1109498, 1621574, 10540231, 21080462]

約数ペア:

[(1, 21080462), (2, 10540231), (13, 1621574), (19, 1109498), (26, 810787), (38, 554749), (139, 151658), (247, 85346), (278, 75829), (307, 68666), (494, 42673), (614, 34333), (1807, 11666), (2641, 7982), (3614, 5833), (3991, 5282)]