21708660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21283}}^1$

素因数の和:21312

約数の個数: 48

約数和(自身を含む): 64362816

約数和(自身を除く): 42654156

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21283, 42566, 63849, 85132, 106415, 127698, 212830, 255396, 319245, 361811, 425660, 638490, 723622, 1085433, 1276980, 1447244, 1809055, 2170866, 3618110, 4341732, 5427165, 7236220, 10854330, 21708660]

約数ペア:

[(1, 21708660), (2, 10854330), (3, 7236220), (4, 5427165), (5, 4341732), (6, 3618110), (10, 2170866), (12, 1809055), (15, 1447244), (17, 1276980), (20, 1085433), (30, 723622), (34, 638490), (51, 425660), (60, 361811), (68, 319245), (85, 255396), (102, 212830), (170, 127698), (204, 106415), (255, 85132), (340, 63849), (510, 42566), (1020, 21283)]