18738524

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{491}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 39674880

約数和(自身を除く): 20936356

約数列:

[1, 2, 4, 7, 14, 28, 29, 47, 58, 94, 116, 188, 203, 329, 406, 491, 658, 812, 982, 1316, 1363, 1964, 2726, 3437, 5452, 6874, 9541, 13748, 14239, 19082, 23077, 28478, 38164, 46154, 56956, 92308, 99673, 161539, 199346, 323078, 398692, 646156, 669233, 1338466, 2676932, 4684631, 9369262, 18738524]

約数ペア:

[(1, 18738524), (2, 9369262), (4, 4684631), (7, 2676932), (14, 1338466), (28, 669233), (29, 646156), (47, 398692), (58, 323078), (94, 199346), (116, 161539), (188, 99673), (203, 92308), (329, 56956), (406, 46154), (491, 38164), (658, 28478), (812, 23077), (982, 19082), (1316, 14239), (1363, 13748), (1964, 9541), (2726, 6874), (3437, 5452)]