21977872

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^2\times {\mathrm{97}}^1$

素因数の和:153

約数の個数: 90

約数和(自身を含む): 53161962

約数和(自身を除く): 31184090

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 49, 56, 68, 97, 98, 112, 119, 136, 194, 196, 238, 272, 289, 388, 392, 476, 578, 679, 776, 784, 833, 952, 1156, 1358, 1552, 1649, 1666, 1904, 2023, 2312, 2716, 3298, 3332, 4046, 4624, 4753, 5432, 6596, 6664, 8092, 9506, 10864, 11543, 13192, 13328, 14161, 16184, 19012, 23086, 26384, 28033, 28322, 32368, 38024, 46172, 56066, 56644, 76048, 80801, 92344, 112132, 113288, 161602, 184688, 196231, 224264, 226576, 323204, 392462, 448528, 646408, 784924, 1292816, 1373617, 1569848, 2747234, 3139696, 5494468, 10988936, 21977872]

約数ペア:

[(1, 21977872), (2, 10988936), (4, 5494468), (7, 3139696), (8, 2747234), (14, 1569848), (16, 1373617), (17, 1292816), (28, 784924), (34, 646408), (49, 448528), (56, 392462), (68, 323204), (97, 226576), (98, 224264), (112, 196231), (119, 184688), (136, 161602), (194, 113288), (196, 112132), (238, 92344), (272, 80801), (289, 76048), (388, 56644), (392, 56066), (476, 46172), (578, 38024), (679, 32368), (776, 28322), (784, 28033), (833, 26384), (952, 23086), (1156, 19012), (1358, 16184), (1552, 14161), (1649, 13328), (1666, 13192), (1904, 11543), (2023, 10864), (2312, 9506), (2716, 8092), (3298, 6664), (3332, 6596), (4046, 5432), (4624, 4753)]