7221879

素因数分解:

$3^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:337

約数の個数: 40

約数和(自身を含む): 12638208

約数和(自身を除く): 5416329

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 141, 189, 271, 329, 423, 567, 813, 987, 1269, 1897, 2439, 2961, 3807, 5691, 7317, 8883, 12737, 17073, 21951, 26649, 38211, 51219, 89159, 114633, 153657, 267477, 343899, 802431, 1031697, 2407293, 7221879]

約数ペア:

[(1, 7221879), (3, 2407293), (7, 1031697), (9, 802431), (21, 343899), (27, 267477), (47, 153657), (63, 114633), (81, 89159), (141, 51219), (189, 38211), (271, 26649), (329, 21951), (423, 17073), (567, 12737), (813, 8883), (987, 7317), (1269, 5691), (1897, 3807), (2439, 2961)]