71521983

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{797}}^1$

素因数の和:888

約数の個数: 36

約数和(自身を含む): 113906520

約数和(自身を除く): 42384537

約数列:

[1, 3, 9, 13, 39, 59, 117, 169, 177, 507, 531, 767, 797, 1521, 2301, 2391, 6903, 7173, 9971, 10361, 29913, 31083, 47023, 89739, 93249, 134693, 141069, 404079, 423207, 611299, 1212237, 1833897, 5501691, 7946887, 23840661, 71521983]

約数ペア:

[(1, 71521983), (3, 23840661), (9, 7946887), (13, 5501691), (39, 1833897), (59, 1212237), (117, 611299), (169, 423207), (177, 404079), (507, 141069), (531, 134693), (767, 93249), (797, 89739), (1521, 47023), (2301, 31083), (2391, 29913), (6903, 10361), (7173, 9971)]