21036840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15937}}^1$

素因数の和:15962

約数の個数: 64

約数和(自身を含む): 68852160

約数和(自身を除く): 47815320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15937, 31874, 47811, 63748, 79685, 95622, 127496, 159370, 175307, 191244, 239055, 318740, 350614, 382488, 478110, 525921, 637480, 701228, 876535, 956220, 1051842, 1402456, 1753070, 1912440, 2103684, 2629605, 3506140, 4207368, 5259210, 7012280, 10518420, 21036840]

約数ペア:

[(1, 21036840), (2, 10518420), (3, 7012280), (4, 5259210), (5, 4207368), (6, 3506140), (8, 2629605), (10, 2103684), (11, 1912440), (12, 1753070), (15, 1402456), (20, 1051842), (22, 956220), (24, 876535), (30, 701228), (33, 637480), (40, 525921), (44, 478110), (55, 382488), (60, 350614), (66, 318740), (88, 239055), (110, 191244), (120, 175307), (132, 159370), (165, 127496), (220, 95622), (264, 79685), (330, 63748), (440, 47811), (660, 31874), (1320, 15937)]