19700648

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{1061}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 40525920

約数和(自身を除く): 20825272

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 211, 422, 844, 1061, 1688, 2122, 2321, 4244, 4642, 8488, 9284, 11671, 18568, 23342, 46684, 93368, 223871, 447742, 895484, 1790968, 2462581, 4925162, 9850324, 19700648]

約数ペア:

[(1, 19700648), (2, 9850324), (4, 4925162), (8, 2462581), (11, 1790968), (22, 895484), (44, 447742), (88, 223871), (211, 93368), (422, 46684), (844, 23342), (1061, 18568), (1688, 11671), (2122, 9284), (2321, 8488), (4244, 4642)]