138198879

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{18749}}^1$

素因数の和:18781

約数の個数: 40

約数和(自身を含む): 254100000

約数和(自身を除く): 115901121

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 7371, 18749, 56247, 131243, 168741, 243737, 393729, 506223, 731211, 1181187, 1518669, 1706159, 2193633, 3543561, 5118477, 6580899, 10630683, 15355431, 19742697, 46066293, 138198879]

約数ペア:

[(1, 138198879), (3, 46066293), (7, 19742697), (9, 15355431), (13, 10630683), (21, 6580899), (27, 5118477), (39, 3543561), (63, 2193633), (81, 1706159), (91, 1518669), (117, 1181187), (189, 731211), (273, 506223), (351, 393729), (567, 243737), (819, 168741), (1053, 131243), (2457, 56247), (7371, 18749)]