19992484

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 39110400

約数和(自身を除く): 19117916

約数列:

[1, 2, 4, 19, 29, 38, 47, 58, 76, 94, 116, 188, 193, 386, 551, 772, 893, 1102, 1363, 1786, 2204, 2726, 3572, 3667, 5452, 5597, 7334, 9071, 11194, 14668, 18142, 22388, 25897, 36284, 51794, 103588, 106343, 172349, 212686, 263059, 344698, 425372, 526118, 689396, 1052236, 4998121, 9996242, 19992484]

約数ペア:

[(1, 19992484), (2, 9996242), (4, 4998121), (19, 1052236), (29, 689396), (38, 526118), (47, 425372), (58, 344698), (76, 263059), (94, 212686), (116, 172349), (188, 106343), (193, 103588), (386, 51794), (551, 36284), (772, 25897), (893, 22388), (1102, 18142), (1363, 14668), (1786, 11194), (2204, 9071), (2726, 7334), (3572, 5597), (3667, 5452)]