210855711

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 339264000

約数和(自身を除く): 128408289

約数列:

[1, 3, 11, 19, 33, 37, 57, 61, 111, 149, 183, 209, 407, 447, 627, 671, 703, 1159, 1221, 1639, 2013, 2109, 2257, 2831, 3477, 4917, 5513, 6771, 7733, 8493, 9089, 12749, 16539, 23199, 24827, 27267, 31141, 38247, 42883, 60643, 74481, 93423, 99979, 104747, 128649, 172691, 181929, 299937, 314241, 336293, 471713, 518073, 1008879, 1152217, 1415139, 1899601, 3456651, 3699223, 5698803, 6389567, 11097669, 19168701, 70285237, 210855711]

約数ペア:

[(1, 210855711), (3, 70285237), (11, 19168701), (19, 11097669), (33, 6389567), (37, 5698803), (57, 3699223), (61, 3456651), (111, 1899601), (149, 1415139), (183, 1152217), (209, 1008879), (407, 518073), (447, 471713), (627, 336293), (671, 314241), (703, 299937), (1159, 181929), (1221, 172691), (1639, 128649), (2013, 104747), (2109, 99979), (2257, 93423), (2831, 74481), (3477, 60643), (4917, 42883), (5513, 38247), (6771, 31141), (7733, 27267), (8493, 24827), (9089, 23199), (12749, 16539)]