20899952

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1453}}^1$

素因数の和:1521

約数の個数: 40

約数和(自身を含む): 43271040

約数和(自身を除く): 22371088

約数列:

[1, 2, 4, 8, 16, 29, 31, 58, 62, 116, 124, 232, 248, 464, 496, 899, 1453, 1798, 2906, 3596, 5812, 7192, 11624, 14384, 23248, 42137, 45043, 84274, 90086, 168548, 180172, 337096, 360344, 674192, 720688, 1306247, 2612494, 5224988, 10449976, 20899952]

約数ペア:

[(1, 20899952), (2, 10449976), (4, 5224988), (8, 2612494), (16, 1306247), (29, 720688), (31, 674192), (58, 360344), (62, 337096), (116, 180172), (124, 168548), (232, 90086), (248, 84274), (464, 45043), (496, 42137), (899, 23248), (1453, 14384), (1798, 11624), (2906, 7192), (3596, 5812)]