21774813

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 10158627

約数列:

[1, 3, 23, 41, 43, 69, 123, 129, 179, 537, 943, 989, 1763, 2829, 2967, 4117, 5289, 7339, 7697, 12351, 22017, 23091, 40549, 121647, 168797, 177031, 315577, 506391, 531093, 946731, 7258271, 21774813]

約数ペア:

[(1, 21774813), (3, 7258271), (23, 946731), (41, 531093), (43, 506391), (69, 315577), (123, 177031), (129, 168797), (179, 121647), (537, 40549), (943, 23091), (989, 22017), (1763, 12351), (2829, 7697), (2967, 7339), (4117, 5289)]