19937552

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28979}}^1$

素因数の和:29030

約数の個数: 20

約数和(自身を含む): 39528720

約数和(自身を除く): 19591168

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28979, 57958, 115916, 231832, 463664, 1246097, 2492194, 4984388, 9968776, 19937552]

約数ペア:

[(1, 19937552), (2, 9968776), (4, 4984388), (8, 2492194), (16, 1246097), (43, 463664), (86, 231832), (172, 115916), (344, 57958), (688, 28979)]