21505008

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2207}}^1$

素因数の和:2254

約数の個数: 80

約数和(自身を含む): 65710080

約数和(自身を除く): 44205072

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 29, 42, 48, 56, 58, 84, 87, 112, 116, 168, 174, 203, 232, 336, 348, 406, 464, 609, 696, 812, 1218, 1392, 1624, 2207, 2436, 3248, 4414, 4872, 6621, 8828, 9744, 13242, 15449, 17656, 26484, 30898, 35312, 46347, 52968, 61796, 64003, 92694, 105936, 123592, 128006, 185388, 192009, 247184, 256012, 370776, 384018, 448021, 512024, 741552, 768036, 896042, 1024048, 1344063, 1536072, 1792084, 2688126, 3072144, 3584168, 5376252, 7168336, 10752504, 21505008]

約数ペア:

[(1, 21505008), (2, 10752504), (3, 7168336), (4, 5376252), (6, 3584168), (7, 3072144), (8, 2688126), (12, 1792084), (14, 1536072), (16, 1344063), (21, 1024048), (24, 896042), (28, 768036), (29, 741552), (42, 512024), (48, 448021), (56, 384018), (58, 370776), (84, 256012), (87, 247184), (112, 192009), (116, 185388), (168, 128006), (174, 123592), (203, 105936), (232, 92694), (336, 64003), (348, 61796), (406, 52968), (464, 46347), (609, 35312), (696, 30898), (812, 26484), (1218, 17656), (1392, 15449), (1624, 13242), (2207, 9744), (2436, 8828), (3248, 6621), (4414, 4872)]