71312157

素因数分解:

$3^4\times 7^1\times {\mathrm{173}}^1\times {\mathrm{727}}^1$

素因数の和:919

約数の個数: 40

約数和(自身を含む): 122618496

約数和(自身を除く): 51306339

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 173, 189, 519, 567, 727, 1211, 1557, 2181, 3633, 4671, 5089, 6543, 10899, 14013, 15267, 19629, 32697, 45801, 58887, 98091, 125771, 137403, 377313, 412209, 880397, 1131939, 2641191, 3395817, 7923573, 10187451, 23770719, 71312157]

約数ペア:

[(1, 71312157), (3, 23770719), (7, 10187451), (9, 7923573), (21, 3395817), (27, 2641191), (63, 1131939), (81, 880397), (173, 412209), (189, 377313), (519, 137403), (567, 125771), (727, 98091), (1211, 58887), (1557, 45801), (2181, 32697), (3633, 19629), (4671, 15267), (5089, 14013), (6543, 10899)]