213043257

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1447}}^1$

素因数の和:1523

約数の個数: 64

約数和(自身を含む): 389222400

約数和(自身を除く): 176179143

約数列:

[1, 3, 7, 9, 19, 21, 27, 41, 57, 63, 123, 133, 171, 189, 287, 369, 399, 513, 779, 861, 1107, 1197, 1447, 2337, 2583, 3591, 4341, 5453, 7011, 7749, 10129, 13023, 16359, 21033, 27493, 30387, 39069, 49077, 59327, 82479, 91161, 147231, 177981, 192451, 247437, 273483, 415289, 533943, 577353, 742311, 1127213, 1245867, 1601829, 1732059, 3381639, 3737601, 5196177, 7890491, 10144917, 11212803, 23671473, 30434751, 71014419, 213043257]

約数ペア:

[(1, 213043257), (3, 71014419), (7, 30434751), (9, 23671473), (19, 11212803), (21, 10144917), (27, 7890491), (41, 5196177), (57, 3737601), (63, 3381639), (123, 1732059), (133, 1601829), (171, 1245867), (189, 1127213), (287, 742311), (369, 577353), (399, 533943), (513, 415289), (779, 273483), (861, 247437), (1107, 192451), (1197, 177981), (1447, 147231), (2337, 91161), (2583, 82479), (3591, 59327), (4341, 49077), (5453, 39069), (7011, 30387), (7749, 27493), (10129, 21033), (13023, 16359)]