20131781229

素因数分解:

$3^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{733}}^1\times {\mathrm{821}}^1$

素因数の和:1632

約数の個数: 80

約数和(自身を含む): 35042451840

約数和(自身を除く): 14910670611

約数列:

[1, 3, 7, 9, 21, 27, 59, 63, 81, 177, 189, 413, 531, 567, 733, 821, 1239, 1593, 2199, 2463, 3717, 4779, 5131, 5747, 6597, 7389, 11151, 15393, 17241, 19791, 22167, 33453, 43247, 46179, 48439, 51723, 59373, 66501, 129741, 138537, 145317, 155169, 302729, 339073, 389223, 415611, 435951, 465507, 601793, 908187, 1017219, 1167669, 1307853, 1805379, 2724561, 3051657, 3503007, 3923559, 4212551, 5416137, 8173683, 9154971, 12637653, 16248411, 24521049, 27464913, 35505787, 37912959, 48745233, 106517361, 113738877, 248540509, 319552083, 341216631, 745621527, 958656249, 2236864581, 2875968747, 6710593743, 20131781229]

約数ペア:

[(1, 20131781229), (3, 6710593743), (7, 2875968747), (9, 2236864581), (21, 958656249), (27, 745621527), (59, 341216631), (63, 319552083), (81, 248540509), (177, 113738877), (189, 106517361), (413, 48745233), (531, 37912959), (567, 35505787), (733, 27464913), (821, 24521049), (1239, 16248411), (1593, 12637653), (2199, 9154971), (2463, 8173683), (3717, 5416137), (4779, 4212551), (5131, 3923559), (5747, 3503007), (6597, 3051657), (7389, 2724561), (11151, 1805379), (15393, 1307853), (17241, 1167669), (19791, 1017219), (22167, 908187), (33453, 601793), (43247, 465507), (46179, 435951), (48439, 415611), (51723, 389223), (59373, 339073), (66501, 302729), (129741, 155169), (138537, 145317)]