20197951228

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1290439}}^1$

素因数の和:1290506

約数の個数: 48

約数和(自身を含む): 44515018240

約数和(自身を除く): 24317067012

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 172, 182, 301, 364, 559, 602, 1118, 1204, 2236, 3913, 7826, 15652, 1290439, 2580878, 5161756, 9033073, 16775707, 18066146, 33551414, 36132292, 55488877, 67102828, 110977754, 117429949, 221955508, 234859898, 388422139, 469719796, 721355401, 776844278, 1442710802, 1553688556, 2885421604, 5049487807, 10098975614, 20197951228]

約数ペア:

[(1, 20197951228), (2, 10098975614), (4, 5049487807), (7, 2885421604), (13, 1553688556), (14, 1442710802), (26, 776844278), (28, 721355401), (43, 469719796), (52, 388422139), (86, 234859898), (91, 221955508), (172, 117429949), (182, 110977754), (301, 67102828), (364, 55488877), (559, 36132292), (602, 33551414), (1118, 18066146), (1204, 16775707), (2236, 9033073), (3913, 5161756), (7826, 2580878), (15652, 1290439)]