245171871

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 415354368

約数和(自身を除く): 170182497

約数列:

[1, 3, 7, 9, 21, 61, 63, 131, 183, 393, 427, 487, 549, 917, 1179, 1281, 1461, 2751, 3409, 3843, 4383, 7991, 8253, 10227, 23973, 29707, 30681, 55937, 63797, 71919, 89121, 167811, 191391, 207949, 267363, 446579, 503433, 574173, 623847, 1339737, 1871541, 3891617, 4019211, 11674851, 27241319, 35024553, 81723957, 245171871]

約数ペア:

[(1, 245171871), (3, 81723957), (7, 35024553), (9, 27241319), (21, 11674851), (61, 4019211), (63, 3891617), (131, 1871541), (183, 1339737), (393, 623847), (427, 574173), (487, 503433), (549, 446579), (917, 267363), (1179, 207949), (1281, 191391), (1461, 167811), (2751, 89121), (3409, 71919), (3843, 63797), (4383, 55937), (7991, 30681), (8253, 29707), (10227, 23973)]