21495120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89563}}^1$

素因数の和:89579

約数の個数: 40

約数和(自身を含む): 66635616

約数和(自身を除く): 45140496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89563, 179126, 268689, 358252, 447815, 537378, 716504, 895630, 1074756, 1343445, 1433008, 1791260, 2149512, 2686890, 3582520, 4299024, 5373780, 7165040, 10747560, 21495120]

約数ペア:

[(1, 21495120), (2, 10747560), (3, 7165040), (4, 5373780), (5, 4299024), (6, 3582520), (8, 2686890), (10, 2149512), (12, 1791260), (15, 1433008), (16, 1343445), (20, 1074756), (24, 895630), (30, 716504), (40, 537378), (48, 447815), (60, 358252), (80, 268689), (120, 179126), (240, 89563)]