51871664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{249383}}^1$

素因数の和:249404

約数の個数: 20

約数和(自身を含む): 108232656

約数和(自身を除く): 56360992

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 249383, 498766, 997532, 1995064, 3241979, 3990128, 6483958, 12967916, 25935832, 51871664]

約数ペア:

[(1, 51871664), (2, 25935832), (4, 12967916), (8, 6483958), (13, 3990128), (16, 3241979), (26, 1995064), (52, 997532), (104, 498766), (208, 249383)]