21852075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 41783040

約数和(自身を除く): 19930965

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 107, 175, 321, 389, 525, 535, 749, 1167, 1605, 1945, 2247, 2675, 2723, 3745, 5835, 8025, 8169, 9725, 11235, 13615, 18725, 29175, 40845, 41623, 56175, 68075, 124869, 204225, 208115, 291361, 624345, 874083, 1040575, 1456805, 3121725, 4370415, 7284025, 21852075]

約数ペア:

[(1, 21852075), (3, 7284025), (5, 4370415), (7, 3121725), (15, 1456805), (21, 1040575), (25, 874083), (35, 624345), (75, 291361), (105, 208115), (107, 204225), (175, 124869), (321, 68075), (389, 56175), (525, 41623), (535, 40845), (749, 29175), (1167, 18725), (1605, 13615), (1945, 11235), (2247, 9725), (2675, 8169), (2723, 8025), (3745, 5835)]