71661681

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5147}}^1$

素因数の和:5190

約数の個数: 48

約数和(自身を含む): 134918784

約数和(自身を除く): 63257103

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1547, 1989, 4641, 5147, 13923, 15441, 36029, 46323, 66911, 87499, 108087, 200733, 262497, 324261, 468377, 602199, 612493, 787491, 1137487, 1405131, 1837479, 3412461, 4215393, 5512437, 7962409, 10237383, 23887227, 71661681]

約数ペア:

[(1, 71661681), (3, 23887227), (7, 10237383), (9, 7962409), (13, 5512437), (17, 4215393), (21, 3412461), (39, 1837479), (51, 1405131), (63, 1137487), (91, 787491), (117, 612493), (119, 602199), (153, 468377), (221, 324261), (273, 262497), (357, 200733), (663, 108087), (819, 87499), (1071, 66911), (1547, 46323), (1989, 36029), (4641, 15441), (5147, 13923)]