215689971

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{8081}}^1$

素因数の和:8163

約数の個数: 32

約数和(自身を含む): 347590656

約数和(自身を除く): 131900685

約数列:

[1, 3, 7, 21, 31, 41, 93, 123, 217, 287, 651, 861, 1271, 3813, 8081, 8897, 24243, 26691, 56567, 169701, 250511, 331321, 751533, 993963, 1753577, 2319247, 5260731, 6957741, 10270951, 30812853, 71896657, 215689971]

約数ペア:

[(1, 215689971), (3, 71896657), (7, 30812853), (21, 10270951), (31, 6957741), (41, 5260731), (93, 2319247), (123, 1753577), (217, 993963), (287, 751533), (651, 331321), (861, 250511), (1271, 169701), (3813, 56567), (8081, 26691), (8897, 24243)]