21021576

素因数分解:

$2^3\times 3^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 54371520

約数和(自身を除く): 33349944

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 61, 83, 122, 166, 173, 183, 244, 249, 332, 346, 366, 488, 498, 519, 664, 692, 732, 996, 1038, 1384, 1464, 1992, 2076, 4152, 5063, 10126, 10553, 14359, 15189, 20252, 21106, 28718, 30378, 31659, 40504, 42212, 43077, 57436, 60756, 63318, 84424, 86154, 114872, 121512, 126636, 172308, 253272, 344616, 875899, 1751798, 2627697, 3503596, 5255394, 7007192, 10510788, 21021576]

約数ペア:

[(1, 21021576), (2, 10510788), (3, 7007192), (4, 5255394), (6, 3503596), (8, 2627697), (12, 1751798), (24, 875899), (61, 344616), (83, 253272), (122, 172308), (166, 126636), (173, 121512), (183, 114872), (244, 86154), (249, 84424), (332, 63318), (346, 60756), (366, 57436), (488, 43077), (498, 42212), (519, 40504), (664, 31659), (692, 30378), (732, 28718), (996, 21106), (1038, 20252), (1384, 15189), (1464, 14359), (1992, 10553), (2076, 10126), (4152, 5063)]