21568794

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:359

約数の個数: 48

約数和(自身を含む): 47433600

約数和(自身を除く): 25864806

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 89, 169, 178, 239, 267, 338, 478, 507, 534, 717, 1014, 1157, 1434, 2314, 3107, 3471, 6214, 6942, 9321, 15041, 18642, 21271, 30082, 40391, 42542, 45123, 63813, 80782, 90246, 121173, 127626, 242346, 276523, 553046, 829569, 1659138, 3594799, 7189598, 10784397, 21568794]

約数ペア:

[(1, 21568794), (2, 10784397), (3, 7189598), (6, 3594799), (13, 1659138), (26, 829569), (39, 553046), (78, 276523), (89, 242346), (169, 127626), (178, 121173), (239, 90246), (267, 80782), (338, 63813), (478, 45123), (507, 42542), (534, 40391), (717, 30082), (1014, 21271), (1157, 18642), (1434, 15041), (2314, 9321), (3107, 6942), (3471, 6214)]