27400653

素因数分解:

$3^3\times 7^2\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 47880000

約数和(自身を除く): 20479347

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 139, 147, 149, 189, 417, 441, 447, 973, 1043, 1251, 1323, 1341, 2919, 3129, 3753, 4023, 6811, 7301, 8757, 9387, 20433, 20711, 21903, 26271, 28161, 61299, 62133, 65709, 144977, 183897, 186399, 197127, 434931, 559197, 1014839, 1304793, 3044517, 3914379, 9133551, 27400653]

約数ペア:

[(1, 27400653), (3, 9133551), (7, 3914379), (9, 3044517), (21, 1304793), (27, 1014839), (49, 559197), (63, 434931), (139, 197127), (147, 186399), (149, 183897), (189, 144977), (417, 65709), (441, 62133), (447, 61299), (973, 28161), (1043, 26271), (1251, 21903), (1323, 20711), (1341, 20433), (2919, 9387), (3129, 8757), (3753, 7301), (4023, 6811)]