21686104

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 45821160

約数和(自身を除く): 24135056

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 121, 172, 242, 344, 473, 484, 521, 946, 968, 1042, 1892, 2084, 3784, 4168, 5203, 5731, 10406, 11462, 20812, 22403, 22924, 41624, 44806, 45848, 63041, 89612, 126082, 179224, 246433, 252164, 492866, 504328, 985732, 1971464, 2710763, 5421526, 10843052, 21686104]

約数ペア:

[(1, 21686104), (2, 10843052), (4, 5421526), (8, 2710763), (11, 1971464), (22, 985732), (43, 504328), (44, 492866), (86, 252164), (88, 246433), (121, 179224), (172, 126082), (242, 89612), (344, 63041), (473, 45848), (484, 44806), (521, 41624), (946, 22924), (968, 22403), (1042, 20812), (1892, 11462), (2084, 10406), (3784, 5731), (4168, 5203)]