19754704

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{4919}}^1$

素因数の和:5178

約数の個数: 20

約数和(自身を含む): 38435040

約数和(自身を除く): 18680336

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 4919, 9838, 19676, 39352, 78704, 1234669, 2469338, 4938676, 9877352, 19754704]

約数ペア:

[(1, 19754704), (2, 9877352), (4, 4938676), (8, 2469338), (16, 1234669), (251, 78704), (502, 39352), (1004, 19676), (2008, 9838), (4016, 4919)]