21477687

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{853}}^1$

素因数の和:983

約数の個数: 32

約数和(自身を含む): 36072960

約数和(自身を除く): 14595273

約数列:

[1, 3, 7, 11, 21, 33, 77, 109, 231, 327, 763, 853, 1199, 2289, 2559, 3597, 5971, 8393, 9383, 17913, 25179, 28149, 65681, 92977, 197043, 278931, 650839, 1022747, 1952517, 3068241, 7159229, 21477687]

約数ペア:

[(1, 21477687), (3, 7159229), (7, 3068241), (11, 1952517), (21, 1022747), (33, 650839), (77, 278931), (109, 197043), (231, 92977), (327, 65681), (763, 28149), (853, 25179), (1199, 17913), (2289, 9383), (2559, 8393), (3597, 5971)]