21506968

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{5261}}^1$

素因数の和:5347

約数の個数: 32

約数和(自身を含む): 46726560

約数和(自身を除く): 25219592

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 5261, 10522, 21044, 36827, 42088, 73654, 147308, 294616, 384053, 768106, 1536212, 2688371, 3072424, 5376742, 10753484, 21506968]

約数ペア:

[(1, 21506968), (2, 10753484), (4, 5376742), (7, 3072424), (8, 2688371), (14, 1536212), (28, 768106), (56, 384053), (73, 294616), (146, 147308), (292, 73654), (511, 42088), (584, 36827), (1022, 21044), (2044, 10522), (4088, 5261)]