21477896

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{2281}}^1$

素因数の和:2405

約数の個数: 32

約数和(自身を含む): 44362080

約数和(自身を除く): 22884184

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 107, 214, 428, 856, 1177, 2281, 2354, 4562, 4708, 9124, 9416, 18248, 25091, 50182, 100364, 200728, 244067, 488134, 976268, 1952536, 2684737, 5369474, 10738948, 21477896]

約数ペア:

[(1, 21477896), (2, 10738948), (4, 5369474), (8, 2684737), (11, 1952536), (22, 976268), (44, 488134), (88, 244067), (107, 200728), (214, 100364), (428, 50182), (856, 25091), (1177, 18248), (2281, 9416), (2354, 9124), (4562, 4708)]