213501309

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 362987520

約数和(自身を除く): 149486211

約数列:

[1, 3, 7, 19, 21, 31, 41, 57, 93, 123, 133, 217, 287, 399, 421, 589, 651, 779, 861, 1263, 1271, 1767, 2337, 2947, 3813, 4123, 5453, 7999, 8841, 8897, 12369, 13051, 16359, 17261, 23997, 24149, 26691, 39153, 51783, 55993, 72447, 91357, 120827, 167979, 169043, 247969, 274071, 327959, 362481, 507129, 535091, 743907, 983877, 1605273, 1735783, 2295713, 3745637, 5207349, 6887139, 10166729, 11236911, 30500187, 71167103, 213501309]

約数ペア:

[(1, 213501309), (3, 71167103), (7, 30500187), (19, 11236911), (21, 10166729), (31, 6887139), (41, 5207349), (57, 3745637), (93, 2295713), (123, 1735783), (133, 1605273), (217, 983877), (287, 743907), (399, 535091), (421, 507129), (589, 362481), (651, 327959), (779, 274071), (861, 247969), (1263, 169043), (1271, 167979), (1767, 120827), (2337, 91357), (2947, 72447), (3813, 55993), (4123, 51783), (5453, 39153), (7999, 26691), (8841, 24149), (8897, 23997), (12369, 17261), (13051, 16359)]