21014769560

素因数分解:

$2^3\times 5^1\times {\mathrm{9811}}^1\times {\mathrm{53549}}^1$

素因数の和:63371

約数の個数: 32

約数和(自身を含む): 47288934000

約数和(自身を除く): 26274164440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9811, 19622, 39244, 49055, 53549, 78488, 98110, 107098, 196220, 214196, 267745, 392440, 428392, 535490, 1070980, 2141960, 525369239, 1050738478, 2101476956, 2626846195, 4202953912, 5253692390, 10507384780, 21014769560]

約数ペア:

[(1, 21014769560), (2, 10507384780), (4, 5253692390), (5, 4202953912), (8, 2626846195), (10, 2101476956), (20, 1050738478), (40, 525369239), (9811, 2141960), (19622, 1070980), (39244, 535490), (49055, 428392), (53549, 392440), (78488, 267745), (98110, 214196), (107098, 196220)]