19997386

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8627}}^1$

素因数の和:8709

約数の個数: 16

約数和(自身を含む): 32096160

約数和(自身を除く): 12098774

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 8627, 17254, 163913, 327826, 526247, 1052494, 9998693, 19997386]

約数ペア:

[(1, 19997386), (2, 9998693), (19, 1052494), (38, 526247), (61, 327826), (122, 163913), (1159, 17254), (2318, 8627)]