21418096

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1607}}^1$

素因数の和:1646

約数の個数: 60

約数和(自身を含む): 51144048

約数和(自身を除く): 29725952

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 49, 56, 68, 98, 112, 119, 136, 196, 238, 272, 392, 476, 784, 833, 952, 1607, 1666, 1904, 3214, 3332, 6428, 6664, 11249, 12856, 13328, 22498, 25712, 27319, 44996, 54638, 78743, 89992, 109276, 157486, 179984, 191233, 218552, 314972, 382466, 437104, 629944, 764932, 1259888, 1338631, 1529864, 2677262, 3059728, 5354524, 10709048, 21418096]

約数ペア:

[(1, 21418096), (2, 10709048), (4, 5354524), (7, 3059728), (8, 2677262), (14, 1529864), (16, 1338631), (17, 1259888), (28, 764932), (34, 629944), (49, 437104), (56, 382466), (68, 314972), (98, 218552), (112, 191233), (119, 179984), (136, 157486), (196, 109276), (238, 89992), (272, 78743), (392, 54638), (476, 44996), (784, 27319), (833, 25712), (952, 22498), (1607, 13328), (1666, 12856), (1904, 11249), (3214, 6664), (3332, 6428)]