19517804

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1951}}^1$

素因数の和:2057

約数の個数: 24

約数和(自身を含む): 35581056

約数和(自身を除く): 16063252

約数列:

[1, 2, 4, 41, 61, 82, 122, 164, 244, 1951, 2501, 3902, 5002, 7804, 10004, 79991, 119011, 159982, 238022, 319964, 476044, 4879451, 9758902, 19517804]

約数ペア:

[(1, 19517804), (2, 9758902), (4, 4879451), (41, 476044), (61, 319964), (82, 238022), (122, 159982), (164, 119011), (244, 79991), (1951, 10004), (2501, 7804), (3902, 5002)]