21380568

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:872

約数の個数: 64

約数和(自身を含む): 58924800

約数和(自身を除く): 37544232

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 109, 132, 218, 264, 327, 436, 654, 743, 872, 1199, 1308, 1486, 2229, 2398, 2616, 2972, 3597, 4458, 4796, 5944, 7194, 8173, 8916, 9592, 14388, 16346, 17832, 24519, 28776, 32692, 49038, 65384, 80987, 98076, 161974, 196152, 242961, 323948, 485922, 647896, 890857, 971844, 1781714, 1943688, 2672571, 3563428, 5345142, 7126856, 10690284, 21380568]

約数ペア:

[(1, 21380568), (2, 10690284), (3, 7126856), (4, 5345142), (6, 3563428), (8, 2672571), (11, 1943688), (12, 1781714), (22, 971844), (24, 890857), (33, 647896), (44, 485922), (66, 323948), (88, 242961), (109, 196152), (132, 161974), (218, 98076), (264, 80987), (327, 65384), (436, 49038), (654, 32692), (743, 28776), (872, 24519), (1199, 17832), (1308, 16346), (1486, 14388), (2229, 9592), (2398, 8916), (2616, 8173), (2972, 7194), (3597, 5944), (4458, 4796)]