20131938687

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{17783}}^1$

素因数の和:17908

約数の個数: 64

約数和(自身を含む): 33216528384

約数和(自身を除く): 13084589697

約数列:

[1, 3, 7, 21, 31, 37, 47, 93, 111, 141, 217, 259, 329, 651, 777, 987, 1147, 1457, 1739, 3441, 4371, 5217, 8029, 10199, 12173, 17783, 24087, 30597, 36519, 53349, 53909, 124481, 161727, 373443, 377363, 551273, 657971, 835801, 1132089, 1653819, 1973913, 2507403, 3858911, 4605797, 5850607, 11576733, 13817391, 17551821, 20397101, 25909831, 30924637, 61191303, 77729493, 92773911, 142779707, 181368817, 216472459, 428339121, 544106451, 649417377, 958663747, 2875991241, 6710646229, 20131938687]

約数ペア:

[(1, 20131938687), (3, 6710646229), (7, 2875991241), (21, 958663747), (31, 649417377), (37, 544106451), (47, 428339121), (93, 216472459), (111, 181368817), (141, 142779707), (217, 92773911), (259, 77729493), (329, 61191303), (651, 30924637), (777, 25909831), (987, 20397101), (1147, 17551821), (1457, 13817391), (1739, 11576733), (3441, 5850607), (4371, 4605797), (5217, 3858911), (8029, 2507403), (10199, 1973913), (12173, 1653819), (17783, 1132089), (24087, 835801), (30597, 657971), (36519, 551273), (53349, 377363), (53909, 373443), (124481, 161727)]