81520887

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1181}}^1$

素因数の和:1383

約数の個数: 32

約数和(自身を含む): 131627520

約数和(自身を除く): 50106633

約数列:

[1, 3, 7, 19, 21, 57, 133, 173, 399, 519, 1181, 1211, 3287, 3543, 3633, 8267, 9861, 22439, 23009, 24801, 67317, 69027, 157073, 204313, 471219, 612939, 1430191, 3881947, 4290573, 11645841, 27173629, 81520887]

約数ペア:

[(1, 81520887), (3, 27173629), (7, 11645841), (19, 4290573), (21, 3881947), (57, 1430191), (133, 612939), (173, 471219), (399, 204313), (519, 157073), (1181, 69027), (1211, 67317), (3287, 24801), (3543, 23009), (3633, 22439), (8267, 9861)]