21544803

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 38438400

約数和(自身を除く): 16893597

約数列:

[1, 3, 7, 9, 19, 21, 41, 57, 63, 123, 133, 171, 287, 369, 399, 439, 779, 861, 1197, 1317, 2337, 2583, 3073, 3951, 5453, 7011, 8341, 9219, 16359, 17999, 25023, 27657, 49077, 53997, 58387, 75069, 125993, 161991, 175161, 341981, 377979, 525483, 1025943, 1133937, 2393867, 3077829, 7181601, 21544803]

約数ペア:

[(1, 21544803), (3, 7181601), (7, 3077829), (9, 2393867), (19, 1133937), (21, 1025943), (41, 525483), (57, 377979), (63, 341981), (123, 175161), (133, 161991), (171, 125993), (287, 75069), (369, 58387), (399, 53997), (439, 49077), (779, 27657), (861, 25023), (1197, 17999), (1317, 16359), (2337, 9219), (2583, 8341), (3073, 7011), (3951, 5453)]