28089201

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 46785600

約数和(自身を除く): 18696399

約数列:

[1, 3, 7, 19, 21, 49, 57, 89, 113, 133, 147, 267, 339, 399, 623, 791, 931, 1691, 1869, 2147, 2373, 2793, 4361, 5073, 5537, 6441, 10057, 11837, 13083, 15029, 16611, 30171, 35511, 45087, 70399, 82859, 105203, 191083, 211197, 248577, 315609, 492793, 573249, 1337581, 1478379, 4012743, 9363067, 28089201]

約数ペア:

[(1, 28089201), (3, 9363067), (7, 4012743), (19, 1478379), (21, 1337581), (49, 573249), (57, 492793), (89, 315609), (113, 248577), (133, 211197), (147, 191083), (267, 105203), (339, 82859), (399, 70399), (623, 45087), (791, 35511), (931, 30171), (1691, 16611), (1869, 15029), (2147, 13083), (2373, 11837), (2793, 10057), (4361, 6441), (5073, 5537)]