20917248

素因数分解:

$2^{10}\times 3^1\times {\mathrm{11}}^1\times {\mathrm{619}}^1$

素因数の和:653

約数の個数: 88

約数和(自身を含む): 60918720

約数和(自身を除く): 40001472

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 128, 132, 176, 192, 256, 264, 352, 384, 512, 528, 619, 704, 768, 1024, 1056, 1238, 1408, 1536, 1857, 2112, 2476, 2816, 3072, 3714, 4224, 4952, 5632, 6809, 7428, 8448, 9904, 11264, 13618, 14856, 16896, 19808, 20427, 27236, 29712, 33792, 39616, 40854, 54472, 59424, 79232, 81708, 108944, 118848, 158464, 163416, 217888, 237696, 316928, 326832, 435776, 475392, 633856, 653664, 871552, 950784, 1307328, 1743104, 1901568, 2614656, 3486208, 5229312, 6972416, 10458624, 20917248]

約数ペア:

[(1, 20917248), (2, 10458624), (3, 6972416), (4, 5229312), (6, 3486208), (8, 2614656), (11, 1901568), (12, 1743104), (16, 1307328), (22, 950784), (24, 871552), (32, 653664), (33, 633856), (44, 475392), (48, 435776), (64, 326832), (66, 316928), (88, 237696), (96, 217888), (128, 163416), (132, 158464), (176, 118848), (192, 108944), (256, 81708), (264, 79232), (352, 59424), (384, 54472), (512, 40854), (528, 39616), (619, 33792), (704, 29712), (768, 27236), (1024, 20427), (1056, 19808), (1238, 16896), (1408, 14856), (1536, 13618), (1857, 11264), (2112, 9904), (2476, 8448), (2816, 7428), (3072, 6809), (3714, 5632), (4224, 4952)]