19521380

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6217}}^1$

素因数の和:6383

約数の個数: 24

約数和(自身を含む): 41262648

約数和(自身を除く): 21741268

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 6217, 12434, 24868, 31085, 62170, 124340, 976069, 1952138, 3904276, 4880345, 9760690, 19521380]

約数ペア:

[(1, 19521380), (2, 9760690), (4, 4880345), (5, 3904276), (10, 1952138), (20, 976069), (157, 124340), (314, 62170), (628, 31085), (785, 24868), (1570, 12434), (3140, 6217)]