19902892

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1511}}^1$

素因数の和:1641

約数の個数: 24

約数和(自身を含む): 36197280

約数和(自身を除く): 16294388

約数列:

[1, 2, 4, 37, 74, 89, 148, 178, 356, 1511, 3022, 3293, 6044, 6586, 13172, 55907, 111814, 134479, 223628, 268958, 537916, 4975723, 9951446, 19902892]

約数ペア:

[(1, 19902892), (2, 9951446), (4, 4975723), (37, 537916), (74, 268958), (89, 223628), (148, 134479), (178, 111814), (356, 55907), (1511, 13172), (3022, 6586), (3293, 6044)]