18674416

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1307}}^1$

素因数の和:1381

約数の個数: 40

約数和(自身を含む): 38926080

約数和(自身を除く): 20251664

約数列:

[1, 2, 4, 8, 16, 19, 38, 47, 76, 94, 152, 188, 304, 376, 752, 893, 1307, 1786, 2614, 3572, 5228, 7144, 10456, 14288, 20912, 24833, 49666, 61429, 99332, 122858, 198664, 245716, 397328, 491432, 982864, 1167151, 2334302, 4668604, 9337208, 18674416]

約数ペア:

[(1, 18674416), (2, 9337208), (4, 4668604), (8, 2334302), (16, 1167151), (19, 982864), (38, 491432), (47, 397328), (76, 245716), (94, 198664), (152, 122858), (188, 99332), (304, 61429), (376, 49666), (752, 24833), (893, 20912), (1307, 14288), (1786, 10456), (2614, 7144), (3572, 5228)]