21578312692

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{208309}}^1$

素因数の和:208408

約数の個数: 48

約数和(自身を含む): 41995296000

約数和(自身を除く): 20416983308

約数列:

[1, 2, 4, 19, 29, 38, 47, 58, 76, 94, 116, 188, 551, 893, 1102, 1363, 1786, 2204, 2726, 3572, 5452, 25897, 51794, 103588, 208309, 416618, 833236, 3957871, 6040961, 7915742, 9790523, 12081922, 15831484, 19581046, 24163844, 39162092, 114778259, 186019937, 229556518, 283925167, 372039874, 459113036, 567850334, 744079748, 1135700668, 5394578173, 10789156346, 21578312692]

約数ペア:

[(1, 21578312692), (2, 10789156346), (4, 5394578173), (19, 1135700668), (29, 744079748), (38, 567850334), (47, 459113036), (58, 372039874), (76, 283925167), (94, 229556518), (116, 186019937), (188, 114778259), (551, 39162092), (893, 24163844), (1102, 19581046), (1363, 15831484), (1786, 12081922), (2204, 9790523), (2726, 7915742), (3572, 6040961), (5452, 3957871), (25897, 833236), (51794, 416618), (103588, 208309)]