21099344

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 80

約数和(自身を含む): 49520640

約数和(自身を除く): 28421296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 59, 62, 103, 112, 118, 124, 206, 217, 236, 248, 412, 413, 434, 472, 496, 721, 824, 826, 868, 944, 1442, 1648, 1652, 1736, 1829, 2884, 3193, 3304, 3472, 3658, 5768, 6077, 6386, 6608, 7316, 11536, 12154, 12772, 12803, 14632, 22351, 24308, 25544, 25606, 29264, 42539, 44702, 48616, 51088, 51212, 85078, 89404, 97232, 102424, 170156, 178808, 188387, 204848, 340312, 357616, 376774, 680624, 753548, 1318709, 1507096, 2637418, 3014192, 5274836, 10549672, 21099344]

約数ペア:

[(1, 21099344), (2, 10549672), (4, 5274836), (7, 3014192), (8, 2637418), (14, 1507096), (16, 1318709), (28, 753548), (31, 680624), (56, 376774), (59, 357616), (62, 340312), (103, 204848), (112, 188387), (118, 178808), (124, 170156), (206, 102424), (217, 97232), (236, 89404), (248, 85078), (412, 51212), (413, 51088), (434, 48616), (472, 44702), (496, 42539), (721, 29264), (824, 25606), (826, 25544), (868, 24308), (944, 22351), (1442, 14632), (1648, 12803), (1652, 12772), (1736, 12154), (1829, 11536), (2884, 7316), (3193, 6608), (3304, 6386), (3472, 6077), (3658, 5768)]