20996875809

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{48281}}^1$

素因数の和:48372

約数の個数: 80

約数和(自身を含む): 39259059840

約数和(自身を除く): 18262184031

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 59, 63, 81, 91, 117, 177, 189, 273, 351, 413, 531, 567, 767, 819, 1053, 1239, 1593, 2301, 2457, 3717, 4779, 5369, 6903, 7371, 11151, 16107, 20709, 33453, 48281, 48321, 62127, 144843, 144963, 337967, 434529, 434889, 627653, 1013901, 1303587, 1882959, 2848579, 3041703, 3910761, 4393571, 5648877, 8545737, 9125109, 13180713, 16946631, 19940053, 25637211, 27375327, 37031527, 39542139, 50839893, 59820159, 76911633, 111094581, 118626417, 179460477, 230734899, 259220689, 333283743, 355879251, 538381431, 777662067, 999851229, 1615144293, 2332986201, 2999553687, 6998958603, 20996875809]

約数ペア:

[(1, 20996875809), (3, 6998958603), (7, 2999553687), (9, 2332986201), (13, 1615144293), (21, 999851229), (27, 777662067), (39, 538381431), (59, 355879251), (63, 333283743), (81, 259220689), (91, 230734899), (117, 179460477), (177, 118626417), (189, 111094581), (273, 76911633), (351, 59820159), (413, 50839893), (531, 39542139), (567, 37031527), (767, 27375327), (819, 25637211), (1053, 19940053), (1239, 16946631), (1593, 13180713), (2301, 9125109), (2457, 8545737), (3717, 5648877), (4779, 4393571), (5369, 3910761), (6903, 3041703), (7371, 2848579), (11151, 1882959), (16107, 1303587), (20709, 1013901), (33453, 627653), (48281, 434889), (48321, 434529), (62127, 337967), (144843, 144963)]