21893872

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1367}}^1$

素因数の和:1406

約数の個数: 80

約数和(自身を含む): 56996352

約数和(自身を除く): 35102480

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 112, 143, 154, 176, 182, 208, 286, 308, 364, 572, 616, 728, 1001, 1144, 1232, 1367, 1456, 2002, 2288, 2734, 4004, 5468, 8008, 9569, 10936, 15037, 16016, 17771, 19138, 21872, 30074, 35542, 38276, 60148, 71084, 76552, 105259, 120296, 124397, 142168, 153104, 195481, 210518, 240592, 248794, 284336, 390962, 421036, 497588, 781924, 842072, 995176, 1368367, 1563848, 1684144, 1990352, 2736734, 3127696, 5473468, 10946936, 21893872]

約数ペア:

[(1, 21893872), (2, 10946936), (4, 5473468), (7, 3127696), (8, 2736734), (11, 1990352), (13, 1684144), (14, 1563848), (16, 1368367), (22, 995176), (26, 842072), (28, 781924), (44, 497588), (52, 421036), (56, 390962), (77, 284336), (88, 248794), (91, 240592), (104, 210518), (112, 195481), (143, 153104), (154, 142168), (176, 124397), (182, 120296), (208, 105259), (286, 76552), (308, 71084), (364, 60148), (572, 38276), (616, 35542), (728, 30074), (1001, 21872), (1144, 19138), (1232, 17771), (1367, 16016), (1456, 15037), (2002, 10936), (2288, 9569), (2734, 8008), (4004, 5468)]