21256584

素因数分解:

$2^3\times 3^1\times {\mathrm{131}}^1\times {\mathrm{6761}}^1$

素因数の和:6901

約数の個数: 32

約数和(自身を含む): 53555040

約数和(自身を除く): 32298456

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 131, 262, 393, 524, 786, 1048, 1572, 3144, 6761, 13522, 20283, 27044, 40566, 54088, 81132, 162264, 885691, 1771382, 2657073, 3542764, 5314146, 7085528, 10628292, 21256584]

約数ペア:

[(1, 21256584), (2, 10628292), (3, 7085528), (4, 5314146), (6, 3542764), (8, 2657073), (12, 1771382), (24, 885691), (131, 162264), (262, 81132), (393, 54088), (524, 40566), (786, 27044), (1048, 20283), (1572, 13522), (3144, 6761)]