20542613

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 27417600

約数和(自身を除く): 6874987

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 271, 343, 637, 833, 1547, 1897, 3523, 4459, 4607, 5831, 10829, 13279, 24661, 32249, 59891, 75803, 92953, 172627, 225743, 419237, 1208389, 1580201, 2934659, 20542613]

約数ペア:

[(1, 20542613), (7, 2934659), (13, 1580201), (17, 1208389), (49, 419237), (91, 225743), (119, 172627), (221, 92953), (271, 75803), (343, 59891), (637, 32249), (833, 24661), (1547, 13279), (1897, 10829), (3523, 5831), (4459, 4607)]