19854476

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1297}}^1$

素因数の和:1433

約数の個数: 24

約数和(自身を含む): 35980560

約数和(自身を除く): 16126084

約数列:

[1, 2, 4, 43, 86, 89, 172, 178, 356, 1297, 2594, 3827, 5188, 7654, 15308, 55771, 111542, 115433, 223084, 230866, 461732, 4963619, 9927238, 19854476]

約数ペア:

[(1, 19854476), (2, 9927238), (4, 4963619), (43, 461732), (86, 230866), (89, 223084), (172, 115433), (178, 111542), (356, 55771), (1297, 15308), (2594, 7654), (3827, 5188)]