18869344

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{677}}^1$

素因数の和:767

約数の個数: 48

約数和(自身を含む): 40663728

約数和(自身を除く): 21794384

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 104, 134, 208, 268, 416, 536, 677, 871, 1072, 1354, 1742, 2144, 2708, 3484, 5416, 6968, 8801, 10832, 13936, 17602, 21664, 27872, 35204, 45359, 70408, 90718, 140816, 181436, 281632, 362872, 589667, 725744, 1179334, 1451488, 2358668, 4717336, 9434672, 18869344]

約数ペア:

[(1, 18869344), (2, 9434672), (4, 4717336), (8, 2358668), (13, 1451488), (16, 1179334), (26, 725744), (32, 589667), (52, 362872), (67, 281632), (104, 181436), (134, 140816), (208, 90718), (268, 70408), (416, 45359), (536, 35204), (677, 27872), (871, 21664), (1072, 17602), (1354, 13936), (1742, 10832), (2144, 8801), (2708, 6968), (3484, 5416)]