21000687201

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1201}}^1\times {\mathrm{1451}}^1$

素因数の和:2774

約数の個数: 48

約数和(自身を含む): 33035114112

約数和(自身を除く): 12034426911

約数列:

[1, 3, 9, 13, 39, 103, 117, 309, 927, 1201, 1339, 1451, 3603, 4017, 4353, 10809, 12051, 13059, 15613, 18863, 46839, 56589, 123703, 140517, 149453, 169767, 371109, 448359, 1113327, 1345077, 1608139, 1742651, 1942889, 4824417, 5227953, 5828667, 14473251, 15683859, 17486001, 22654463, 67963389, 179493053, 203890167, 538479159, 1615437477, 2333409689, 7000229067, 21000687201]

約数ペア:

[(1, 21000687201), (3, 7000229067), (9, 2333409689), (13, 1615437477), (39, 538479159), (103, 203890167), (117, 179493053), (309, 67963389), (927, 22654463), (1201, 17486001), (1339, 15683859), (1451, 14473251), (3603, 5828667), (4017, 5227953), (4353, 4824417), (10809, 1942889), (12051, 1742651), (13059, 1608139), (15613, 1345077), (18863, 1113327), (46839, 448359), (56589, 371109), (123703, 169767), (140517, 149453)]