21421670403

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{26539}}^1$

素因数の和:26609

約数の個数: 72

約数和(自身を含む): 37153876800

約数和(自身を除く): 15732206397

約数列:

[1, 3, 7, 17, 19, 21, 49, 51, 57, 119, 133, 147, 289, 323, 357, 399, 833, 867, 931, 969, 2023, 2261, 2499, 2793, 5491, 6069, 6783, 14161, 15827, 16473, 26539, 38437, 42483, 47481, 79617, 115311, 185773, 269059, 451163, 504241, 557319, 807177, 1300411, 1353489, 1512723, 3158141, 3529687, 3901233, 7669771, 8572097, 9474423, 10589061, 22106987, 23009313, 24707809, 25716291, 53688397, 60004679, 66320961, 74123427, 145725649, 161065191, 180014037, 375818779, 420032753, 437176947, 1020079543, 1127456337, 1260098259, 3060238629, 7140556801, 21421670403]

約数ペア:

[(1, 21421670403), (3, 7140556801), (7, 3060238629), (17, 1260098259), (19, 1127456337), (21, 1020079543), (49, 437176947), (51, 420032753), (57, 375818779), (119, 180014037), (133, 161065191), (147, 145725649), (289, 74123427), (323, 66320961), (357, 60004679), (399, 53688397), (833, 25716291), (867, 24707809), (931, 23009313), (969, 22106987), (2023, 10589061), (2261, 9474423), (2499, 8572097), (2793, 7669771), (5491, 3901233), (6069, 3529687), (6783, 3158141), (14161, 1512723), (15827, 1353489), (16473, 1300411), (26539, 807177), (38437, 557319), (42483, 504241), (47481, 451163), (79617, 269059), (115311, 185773)]