21589702915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1\times {\mathrm{239}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 29154816000

約数和(自身を除く): 7565113085

約数列:

[1, 5, 11, 55, 73, 149, 151, 239, 365, 745, 755, 803, 1195, 1639, 1661, 2629, 4015, 8195, 8305, 10877, 11023, 13145, 17447, 22499, 35611, 36089, 54385, 55115, 87235, 112495, 119647, 121253, 178055, 180445, 191917, 247489, 391721, 396979, 598235, 606265, 959585, 1237445, 1642427, 1958605, 1984895, 2599603, 2634497, 5377261, 8212135, 12998015, 13172485, 18066697, 26886305, 28595633, 28979467, 59149871, 90333485, 142978165, 144897335, 295749355, 392540053, 1962700265, 4317940583, 21589702915]

約数ペア:

[(1, 21589702915), (5, 4317940583), (11, 1962700265), (55, 392540053), (73, 295749355), (149, 144897335), (151, 142978165), (239, 90333485), (365, 59149871), (745, 28979467), (755, 28595633), (803, 26886305), (1195, 18066697), (1639, 13172485), (1661, 12998015), (2629, 8212135), (4015, 5377261), (8195, 2634497), (8305, 2599603), (10877, 1984895), (11023, 1958605), (13145, 1642427), (17447, 1237445), (22499, 959585), (35611, 606265), (36089, 598235), (54385, 396979), (55115, 391721), (87235, 247489), (112495, 191917), (119647, 180445), (121253, 178055)]