19540662

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 43338240

約数和(自身を除く): 23797578

約数列:

[1, 2, 3, 6, 23, 37, 43, 46, 69, 74, 86, 89, 111, 129, 138, 178, 222, 258, 267, 534, 851, 989, 1591, 1702, 1978, 2047, 2553, 2967, 3182, 3293, 3827, 4094, 4773, 5106, 5934, 6141, 6586, 7654, 9546, 9879, 11481, 12282, 19758, 22962, 36593, 73186, 75739, 88021, 109779, 141599, 151478, 176042, 219558, 227217, 264063, 283198, 424797, 454434, 528126, 849594, 3256777, 6513554, 9770331, 19540662]

約数ペア:

[(1, 19540662), (2, 9770331), (3, 6513554), (6, 3256777), (23, 849594), (37, 528126), (43, 454434), (46, 424797), (69, 283198), (74, 264063), (86, 227217), (89, 219558), (111, 176042), (129, 151478), (138, 141599), (178, 109779), (222, 88021), (258, 75739), (267, 73186), (534, 36593), (851, 22962), (989, 19758), (1591, 12282), (1702, 11481), (1978, 9879), (2047, 9546), (2553, 7654), (2967, 6586), (3182, 6141), (3293, 5934), (3827, 5106), (4094, 4773)]