21299564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1619}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24423316

約数列:

[1, 2, 4, 11, 13, 22, 23, 26, 44, 46, 52, 92, 143, 253, 286, 299, 506, 572, 598, 1012, 1196, 1619, 3238, 3289, 6476, 6578, 13156, 17809, 21047, 35618, 37237, 42094, 71236, 74474, 84188, 148948, 231517, 409607, 463034, 484081, 819214, 926068, 968162, 1638428, 1936324, 5324891, 10649782, 21299564]

約数ペア:

[(1, 21299564), (2, 10649782), (4, 5324891), (11, 1936324), (13, 1638428), (22, 968162), (23, 926068), (26, 819214), (44, 484081), (46, 463034), (52, 409607), (92, 231517), (143, 148948), (253, 84188), (286, 74474), (299, 71236), (506, 42094), (572, 37237), (598, 35618), (1012, 21047), (1196, 17809), (1619, 13156), (3238, 6578), (3289, 6476)]