19772432

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1071

約数の個数: 40

約数和(自身を含む): 40592640

約数和(自身を除く): 20820208

約数列:

[1, 2, 4, 8, 16, 29, 43, 58, 86, 116, 172, 232, 344, 464, 688, 991, 1247, 1982, 2494, 3964, 4988, 7928, 9976, 15856, 19952, 28739, 42613, 57478, 85226, 114956, 170452, 229912, 340904, 459824, 681808, 1235777, 2471554, 4943108, 9886216, 19772432]

約数ペア:

[(1, 19772432), (2, 9886216), (4, 4943108), (8, 2471554), (16, 1235777), (29, 681808), (43, 459824), (58, 340904), (86, 229912), (116, 170452), (172, 114956), (232, 85226), (344, 57478), (464, 42613), (688, 28739), (991, 19952), (1247, 15856), (1982, 9976), (2494, 7928), (3964, 4988)]