20855692

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{101}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 45701712

約数和(自身を除く): 24846020

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 101, 143, 202, 209, 247, 286, 361, 404, 418, 494, 572, 722, 836, 988, 1111, 1313, 1444, 1919, 2222, 2626, 2717, 3838, 3971, 4444, 4693, 5252, 5434, 7676, 7942, 9386, 10868, 14443, 15884, 18772, 21109, 24947, 28886, 36461, 42218, 49894, 51623, 57772, 72922, 84436, 99788, 103246, 145844, 206492, 274417, 401071, 473993, 548834, 802142, 947986, 1097668, 1604284, 1895972, 5213923, 10427846, 20855692]

約数ペア:

[(1, 20855692), (2, 10427846), (4, 5213923), (11, 1895972), (13, 1604284), (19, 1097668), (22, 947986), (26, 802142), (38, 548834), (44, 473993), (52, 401071), (76, 274417), (101, 206492), (143, 145844), (202, 103246), (209, 99788), (247, 84436), (286, 72922), (361, 57772), (404, 51623), (418, 49894), (494, 42218), (572, 36461), (722, 28886), (836, 24947), (988, 21109), (1111, 18772), (1313, 15884), (1444, 14443), (1919, 10868), (2222, 9386), (2626, 7942), (2717, 7676), (3838, 5434), (3971, 5252), (4444, 4693)]