19804912

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{42683}}^1$

素因数の和:42720

約数の個数: 20

約数和(自身を含む): 39696120

約数和(自身を除く): 19891208

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 42683, 85366, 170732, 341464, 682928, 1237807, 2475614, 4951228, 9902456, 19804912]

約数ペア:

[(1, 19804912), (2, 9902456), (4, 4951228), (8, 2475614), (16, 1237807), (29, 682928), (58, 341464), (116, 170732), (232, 85366), (464, 42683)]