20899682271

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{2381}}^1$

素因数の和:2641

約数の個数: 72

約数和(自身を含む): 34000668000

約数和(自身を除く): 13100985729

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 169, 199, 261, 377, 507, 597, 1131, 1521, 1791, 2381, 2587, 3393, 4901, 5771, 7143, 7761, 14703, 17313, 21429, 23283, 30953, 33631, 44109, 51939, 69049, 75023, 92859, 100893, 207147, 225069, 278577, 302679, 402389, 473819, 621441, 675207, 897637, 975299, 1207167, 1421457, 2692911, 2925897, 3621501, 4264371, 6159647, 8078733, 8777691, 11669281, 13740751, 18478941, 35007843, 41222253, 55436823, 80075411, 105023529, 123666759, 178629763, 240226233, 535889289, 720678699, 1607667867, 2322186919, 6966560757, 20899682271]

約数ペア:

[(1, 20899682271), (3, 6966560757), (9, 2322186919), (13, 1607667867), (29, 720678699), (39, 535889289), (87, 240226233), (117, 178629763), (169, 123666759), (199, 105023529), (261, 80075411), (377, 55436823), (507, 41222253), (597, 35007843), (1131, 18478941), (1521, 13740751), (1791, 11669281), (2381, 8777691), (2587, 8078733), (3393, 6159647), (4901, 4264371), (5771, 3621501), (7143, 2925897), (7761, 2692911), (14703, 1421457), (17313, 1207167), (21429, 975299), (23283, 897637), (30953, 675207), (33631, 621441), (44109, 473819), (51939, 402389), (69049, 302679), (75023, 278577), (92859, 225069), (100893, 207147)]