20349836

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 41395200

約数和(自身を除く): 21045364

約数列:

[1, 2, 4, 13, 19, 26, 38, 43, 52, 76, 86, 172, 247, 479, 494, 559, 817, 958, 988, 1118, 1634, 1916, 2236, 3268, 6227, 9101, 10621, 12454, 18202, 20597, 21242, 24908, 36404, 41194, 42484, 82388, 118313, 236626, 267761, 391343, 473252, 535522, 782686, 1071044, 1565372, 5087459, 10174918, 20349836]

約数ペア:

[(1, 20349836), (2, 10174918), (4, 5087459), (13, 1565372), (19, 1071044), (26, 782686), (38, 535522), (43, 473252), (52, 391343), (76, 267761), (86, 236626), (172, 118313), (247, 82388), (479, 42484), (494, 41194), (559, 36404), (817, 24908), (958, 21242), (988, 20597), (1118, 18202), (1634, 12454), (1916, 10621), (2236, 9101), (3268, 6227)]