21149040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{8011}}^1$

素因数の和:8038

約数の個数: 80

約数和(自身を含む): 71531136

約数和(自身を除く): 50382096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 8011, 16022, 24033, 32044, 40055, 48066, 64088, 80110, 88121, 96132, 120165, 128176, 160220, 176242, 192264, 240330, 264363, 320440, 352484, 384528, 440605, 480660, 528726, 640880, 704968, 881210, 961320, 1057452, 1321815, 1409936, 1762420, 1922640, 2114904, 2643630, 3524840, 4229808, 5287260, 7049680, 10574520, 21149040]

約数ペア:

[(1, 21149040), (2, 10574520), (3, 7049680), (4, 5287260), (5, 4229808), (6, 3524840), (8, 2643630), (10, 2114904), (11, 1922640), (12, 1762420), (15, 1409936), (16, 1321815), (20, 1057452), (22, 961320), (24, 881210), (30, 704968), (33, 640880), (40, 528726), (44, 480660), (48, 440605), (55, 384528), (60, 352484), (66, 320440), (80, 264363), (88, 240330), (110, 192264), (120, 176242), (132, 160220), (165, 128176), (176, 120165), (220, 96132), (240, 88121), (264, 80110), (330, 64088), (440, 48066), (528, 40055), (660, 32044), (880, 24033), (1320, 16022), (2640, 8011)]