21055384

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1301}}^1$

素因数の和:1348

約数の個数: 48

約数和(自身を含む): 47965680

約数和(自身を除く): 26910296

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 289, 476, 578, 952, 1156, 1301, 2023, 2312, 2602, 4046, 5204, 8092, 9107, 10408, 16184, 18214, 22117, 36428, 44234, 72856, 88468, 154819, 176936, 309638, 375989, 619276, 751978, 1238552, 1503956, 2631923, 3007912, 5263846, 10527692, 21055384]

約数ペア:

[(1, 21055384), (2, 10527692), (4, 5263846), (7, 3007912), (8, 2631923), (14, 1503956), (17, 1238552), (28, 751978), (34, 619276), (56, 375989), (68, 309638), (119, 176936), (136, 154819), (238, 88468), (289, 72856), (476, 44234), (578, 36428), (952, 22117), (1156, 18214), (1301, 16184), (2023, 10408), (2312, 9107), (2602, 8092), (4046, 5204)]