19687792

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{7549}}^1$

素因数の和:7720

約数の個数: 20

約数和(自身を含む): 38384200

約数和(自身を除く): 18696408

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 7549, 15098, 30196, 60392, 120784, 1230487, 2460974, 4921948, 9843896, 19687792]

約数ペア:

[(1, 19687792), (2, 9843896), (4, 4921948), (8, 2460974), (16, 1230487), (163, 120784), (326, 60392), (652, 30196), (1304, 15098), (2608, 7549)]