19997672

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{433}}^1$

素因数の和:713

約数の個数: 32

約数和(自身を含む): 39372480

約数和(自身を除く): 19374808

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 251, 433, 502, 866, 1004, 1732, 2008, 3464, 5773, 9959, 11546, 19918, 23092, 39836, 46184, 79672, 108683, 217366, 434732, 869464, 2499709, 4999418, 9998836, 19997672]

約数ペア:

[(1, 19997672), (2, 9998836), (4, 4999418), (8, 2499709), (23, 869464), (46, 434732), (92, 217366), (184, 108683), (251, 79672), (433, 46184), (502, 39836), (866, 23092), (1004, 19918), (1732, 11546), (2008, 9959), (3464, 5773)]