28189539

素因数分解:

$3^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{599}}^1$

素因数の和:701

約数の個数: 40

約数和(自身を含む): 48787200

約数和(自身を除く): 20597661

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 83, 189, 249, 567, 581, 599, 747, 1743, 1797, 2241, 4193, 5229, 5391, 6723, 12579, 15687, 16173, 37737, 47061, 48519, 49717, 113211, 149151, 339633, 348019, 447453, 1044057, 1342359, 3132171, 4027077, 9396513, 28189539]

約数ペア:

[(1, 28189539), (3, 9396513), (7, 4027077), (9, 3132171), (21, 1342359), (27, 1044057), (63, 447453), (81, 348019), (83, 339633), (189, 149151), (249, 113211), (567, 49717), (581, 48519), (599, 47061), (747, 37737), (1743, 16173), (1797, 15687), (2241, 12579), (4193, 6723), (5229, 5391)]