215548893

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 384134400

約数和(自身を除く): 168585507

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 79, 147, 161, 207, 237, 269, 441, 483, 553, 711, 807, 1127, 1449, 1659, 1817, 1883, 2421, 3381, 3871, 4977, 5451, 5649, 6187, 10143, 11613, 12719, 13181, 16353, 16947, 18561, 21251, 34839, 38157, 39543, 43309, 55683, 63753, 89033, 114471, 118629, 129927, 148757, 191259, 267099, 303163, 389781, 446271, 488773, 801297, 909489, 1041299, 1338813, 1466319, 2728467, 3123897, 3421411, 4398957, 9371691, 10264233, 23949877, 30792699, 71849631, 215548893]

約数ペア:

[(1, 215548893), (3, 71849631), (7, 30792699), (9, 23949877), (21, 10264233), (23, 9371691), (49, 4398957), (63, 3421411), (69, 3123897), (79, 2728467), (147, 1466319), (161, 1338813), (207, 1041299), (237, 909489), (269, 801297), (441, 488773), (483, 446271), (553, 389781), (711, 303163), (807, 267099), (1127, 191259), (1449, 148757), (1659, 129927), (1817, 118629), (1883, 114471), (2421, 89033), (3381, 63753), (3871, 55683), (4977, 43309), (5451, 39543), (5649, 38157), (6187, 34839), (10143, 21251), (11613, 18561), (12719, 16947), (13181, 16353)]