20631568

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67867}}^1$

素因数の和:67894

約数の個数: 20

約数和(自身を含む): 42078160

約数和(自身を除く): 21446592

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 67867, 135734, 271468, 542936, 1085872, 1289473, 2578946, 5157892, 10315784, 20631568]

約数ペア:

[(1, 20631568), (2, 10315784), (4, 5157892), (8, 2578946), (16, 1289473), (19, 1085872), (38, 542936), (76, 271468), (152, 135734), (304, 67867)]