19581136

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{8933}}^1$

素因数の和:9078

約数の個数: 20

約数和(自身を含む): 38219652

約数和(自身を除く): 18638516

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 8933, 17866, 35732, 71464, 142928, 1223821, 2447642, 4895284, 9790568, 19581136]

約数ペア:

[(1, 19581136), (2, 9790568), (4, 4895284), (8, 2447642), (16, 1223821), (137, 142928), (274, 71464), (548, 35732), (1096, 17866), (2192, 8933)]