20189889117

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{683}}^1\times {\mathrm{1987}}^1$

素因数の和:2727

約数の個数: 64

約数和(自身を含む): 32635008000

約数和(自身を除く): 12445118883

約数列:

[1, 3, 9, 19, 27, 29, 57, 87, 171, 261, 513, 551, 683, 783, 1653, 1987, 2049, 4959, 5961, 6147, 12977, 14877, 17883, 18441, 19807, 37753, 38931, 53649, 57623, 59421, 113259, 116793, 172869, 178263, 339777, 350379, 376333, 518607, 534789, 1019331, 1094837, 1128999, 1357121, 1555821, 3284511, 3386997, 4071363, 9853533, 10160991, 12214089, 25785299, 29560599, 36642267, 39356509, 77355897, 118069527, 232067691, 354208581, 696203073, 747773671, 1062625743, 2243321013, 6729963039, 20189889117]

約数ペア:

[(1, 20189889117), (3, 6729963039), (9, 2243321013), (19, 1062625743), (27, 747773671), (29, 696203073), (57, 354208581), (87, 232067691), (171, 118069527), (261, 77355897), (513, 39356509), (551, 36642267), (683, 29560599), (783, 25785299), (1653, 12214089), (1987, 10160991), (2049, 9853533), (4959, 4071363), (5961, 3386997), (6147, 3284511), (12977, 1555821), (14877, 1357121), (17883, 1128999), (18441, 1094837), (19807, 1019331), (37753, 534789), (38931, 518607), (53649, 376333), (57623, 350379), (59421, 339777), (113259, 178263), (116793, 172869)]