18227979

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{907}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 33995520

約数和(自身を除く): 15767541

約数列:

[1, 3, 7, 9, 11, 21, 29, 33, 63, 77, 87, 99, 203, 231, 261, 319, 609, 693, 907, 957, 1827, 2233, 2721, 2871, 6349, 6699, 8163, 9977, 19047, 20097, 26303, 29931, 57141, 69839, 78909, 89793, 184121, 209517, 236727, 289333, 552363, 628551, 867999, 1657089, 2025331, 2603997, 6075993, 18227979]

約数ペア:

[(1, 18227979), (3, 6075993), (7, 2603997), (9, 2025331), (11, 1657089), (21, 867999), (29, 628551), (33, 552363), (63, 289333), (77, 236727), (87, 209517), (99, 184121), (203, 89793), (231, 78909), (261, 69839), (319, 57141), (609, 29931), (693, 26303), (907, 20097), (957, 19047), (1827, 9977), (2233, 8163), (2721, 6699), (2871, 6349)]