21389544

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:375

約数の個数: 96

約数和(自身を含む): 64022400

約数和(自身を除く): 42632856

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 72, 88, 99, 113, 132, 198, 226, 239, 264, 339, 396, 452, 478, 678, 717, 792, 904, 956, 1017, 1243, 1356, 1434, 1912, 2034, 2151, 2486, 2629, 2712, 2868, 3729, 4068, 4302, 4972, 5258, 5736, 7458, 7887, 8136, 8604, 9944, 10516, 11187, 14916, 15774, 17208, 21032, 22374, 23661, 27007, 29832, 31548, 44748, 47322, 54014, 63096, 81021, 89496, 94644, 108028, 162042, 189288, 216056, 243063, 297077, 324084, 486126, 594154, 648168, 891231, 972252, 1188308, 1782462, 1944504, 2376616, 2673693, 3564924, 5347386, 7129848, 10694772, 21389544]

約数ペア:

[(1, 21389544), (2, 10694772), (3, 7129848), (4, 5347386), (6, 3564924), (8, 2673693), (9, 2376616), (11, 1944504), (12, 1782462), (18, 1188308), (22, 972252), (24, 891231), (33, 648168), (36, 594154), (44, 486126), (66, 324084), (72, 297077), (88, 243063), (99, 216056), (113, 189288), (132, 162042), (198, 108028), (226, 94644), (239, 89496), (264, 81021), (339, 63096), (396, 54014), (452, 47322), (478, 44748), (678, 31548), (717, 29832), (792, 27007), (904, 23661), (956, 22374), (1017, 21032), (1243, 17208), (1356, 15774), (1434, 14916), (1912, 11187), (2034, 10516), (2151, 9944), (2486, 8604), (2629, 8136), (2712, 7887), (2868, 7458), (3729, 5736), (4068, 5258), (4302, 4972)]