217386691221

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{751}}^1\times {\mathrm{2447}}^1$

素因数の和:3382

約数の個数: 64

約数和(自身を含む): 342141566976

約数和(自身を除く): 124754875755

約数列:

[1, 3, 7, 21, 43, 129, 131, 301, 393, 751, 903, 917, 2253, 2447, 2751, 5257, 5633, 7341, 15771, 16899, 17129, 32293, 39431, 51387, 96879, 98381, 105221, 118293, 226051, 295143, 315663, 320557, 678153, 688667, 736547, 961671, 1837697, 2066001, 2209641, 2243899, 4230383, 5513091, 6731697, 12691149, 12863879, 13783951, 29612681, 38591637, 41351853, 79020971, 88838043, 96487657, 237062913, 240738307, 289462971, 553146797, 722214921, 1659440391, 1685168149, 5055504447, 10351747201, 31055241603, 72462230407, 217386691221]

約数ペア:

[(1, 217386691221), (3, 72462230407), (7, 31055241603), (21, 10351747201), (43, 5055504447), (129, 1685168149), (131, 1659440391), (301, 722214921), (393, 553146797), (751, 289462971), (903, 240738307), (917, 237062913), (2253, 96487657), (2447, 88838043), (2751, 79020971), (5257, 41351853), (5633, 38591637), (7341, 29612681), (15771, 13783951), (16899, 12863879), (17129, 12691149), (32293, 6731697), (39431, 5513091), (51387, 4230383), (96879, 2243899), (98381, 2209641), (105221, 2066001), (118293, 1837697), (226051, 961671), (295143, 736547), (315663, 688667), (320557, 678153)]