13456978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 22550400

約数和(自身を除く): 9093422

約数列:

[1, 2, 19, 23, 38, 46, 89, 173, 178, 346, 437, 874, 1691, 2047, 3287, 3382, 3979, 4094, 6574, 7958, 15397, 30794, 38893, 75601, 77786, 151202, 292543, 354131, 585086, 708262, 6728489, 13456978]

約数ペア:

[(1, 13456978), (2, 6728489), (19, 708262), (23, 585086), (38, 354131), (46, 292543), (89, 151202), (173, 77786), (178, 75601), (346, 38893), (437, 30794), (874, 15397), (1691, 7958), (2047, 6574), (3287, 4094), (3382, 3979)]