856851303

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{991}}^1$

素因数の和:1228

約数の個数: 64

約数和(自身を含む): 1508474880

約数和(自身を除く): 651623577

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 197, 209, 231, 399, 591, 627, 991, 1379, 1463, 2167, 2973, 3743, 4137, 4389, 6501, 6937, 10901, 11229, 15169, 18829, 20811, 26201, 32703, 41173, 45507, 56487, 76307, 78603, 123519, 131803, 195227, 207119, 228921, 288211, 395409, 585681, 621357, 864633, 1366589, 1449833, 2147497, 3709313, 4099767, 4349499, 6442491, 11127939, 15032479, 25965191, 40802443, 45097437, 77895573, 122407329, 285617101, 856851303]

約数ペア:

[(1, 856851303), (3, 285617101), (7, 122407329), (11, 77895573), (19, 45097437), (21, 40802443), (33, 25965191), (57, 15032479), (77, 11127939), (133, 6442491), (197, 4349499), (209, 4099767), (231, 3709313), (399, 2147497), (591, 1449833), (627, 1366589), (991, 864633), (1379, 621357), (1463, 585681), (2167, 395409), (2973, 288211), (3743, 228921), (4137, 207119), (4389, 195227), (6501, 131803), (6937, 123519), (10901, 78603), (11229, 76307), (15169, 56487), (18829, 45507), (20811, 41173), (26201, 32703)]