64730421

素因数分解:

$3^4\times 7^2\times {\mathrm{47}}^1\times {\mathrm{347}}^1$

素因数の和:420

約数の個数: 60

約数和(自身を含む): 115207488

約数和(自身を除く): 50477067

約数列:

[1, 3, 7, 9, 21, 27, 47, 49, 63, 81, 141, 147, 189, 329, 347, 423, 441, 567, 987, 1041, 1269, 1323, 2303, 2429, 2961, 3123, 3807, 3969, 6909, 7287, 8883, 9369, 16309, 17003, 20727, 21861, 26649, 28107, 48927, 51009, 62181, 65583, 114163, 146781, 153027, 186543, 196749, 342489, 440343, 459081, 799141, 1027467, 1321029, 1377243, 2397423, 3082401, 7192269, 9247203, 21576807, 64730421]

約数ペア:

[(1, 64730421), (3, 21576807), (7, 9247203), (9, 7192269), (21, 3082401), (27, 2397423), (47, 1377243), (49, 1321029), (63, 1027467), (81, 799141), (141, 459081), (147, 440343), (189, 342489), (329, 196749), (347, 186543), (423, 153027), (441, 146781), (567, 114163), (987, 65583), (1041, 62181), (1269, 51009), (1323, 48927), (2303, 28107), (2429, 26649), (2961, 21861), (3123, 20727), (3807, 17003), (3969, 16309), (6909, 9369), (7287, 8883)]