18771538

素因数分解:

$2^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:641

約数の個数: 16

約数和(自身を含む): 28563840

約数和(自身を除く): 9792302

約数列:

[1, 2, 173, 227, 239, 346, 454, 478, 39271, 41347, 54253, 78542, 82694, 108506, 9385769, 18771538]

約数ペア:

[(1, 18771538), (2, 9385769), (173, 108506), (227, 82694), (239, 78542), (346, 54253), (454, 41347), (478, 39271)]