21301546

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1097}}^1$

素因数の和:1198

約数の個数: 32

約数和(自身を含む): 39000960

約数和(自身を除く): 17699414

約数列:

[1, 2, 7, 14, 19, 38, 73, 133, 146, 266, 511, 1022, 1097, 1387, 2194, 2774, 7679, 9709, 15358, 19418, 20843, 41686, 80081, 145901, 160162, 291802, 560567, 1121134, 1521539, 3043078, 10650773, 21301546]

約数ペア:

[(1, 21301546), (2, 10650773), (7, 3043078), (14, 1521539), (19, 1121134), (38, 560567), (73, 291802), (133, 160162), (146, 145901), (266, 80081), (511, 41686), (1022, 20843), (1097, 19418), (1387, 15358), (2194, 9709), (2774, 7679)]