638828931

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1\times {\mathrm{887}}^1$

素因数の和:1275

約数の個数: 32

約数和(自身を含む): 936875520

約数和(自身を除く): 298046589

約数列:

[1, 3, 13, 39, 59, 177, 313, 767, 887, 939, 2301, 2661, 4069, 11531, 12207, 18467, 34593, 52333, 55401, 156999, 240071, 277631, 680329, 720213, 832893, 2040987, 3609203, 10827609, 16380229, 49140687, 212942977, 638828931]

約数ペア:

[(1, 638828931), (3, 212942977), (13, 49140687), (39, 16380229), (59, 10827609), (177, 3609203), (313, 2040987), (767, 832893), (887, 720213), (939, 680329), (2301, 277631), (2661, 240071), (4069, 156999), (11531, 55401), (12207, 52333), (18467, 34593)]