21059610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4909}}^1$

素因数の和:4943

約数の個数: 64

約数和(自身を含む): 59391360

約数和(自身を除く): 38331750

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 130, 143, 165, 195, 286, 330, 390, 429, 715, 858, 1430, 2145, 4290, 4909, 9818, 14727, 24545, 29454, 49090, 53999, 63817, 73635, 107998, 127634, 147270, 161997, 191451, 269995, 319085, 323994, 382902, 539990, 638170, 701987, 809985, 957255, 1403974, 1619970, 1914510, 2105961, 3509935, 4211922, 7019870, 10529805, 21059610]

約数ペア:

[(1, 21059610), (2, 10529805), (3, 7019870), (5, 4211922), (6, 3509935), (10, 2105961), (11, 1914510), (13, 1619970), (15, 1403974), (22, 957255), (26, 809985), (30, 701987), (33, 638170), (39, 539990), (55, 382902), (65, 323994), (66, 319085), (78, 269995), (110, 191451), (130, 161997), (143, 147270), (165, 127634), (195, 107998), (286, 73635), (330, 63817), (390, 53999), (429, 49090), (715, 29454), (858, 24545), (1430, 14727), (2145, 9818), (4290, 4909)]