139910211

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{47251}}^1$

素因数の和:47311

約数の個数: 24

約数和(自身を含む): 235881984

約数和(自身を除く): 95971773

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 47251, 141753, 330757, 425259, 992271, 2220797, 2976813, 6662391, 15545579, 19987173, 46636737, 139910211]

約数ペア:

[(1, 139910211), (3, 46636737), (7, 19987173), (9, 15545579), (21, 6662391), (47, 2976813), (63, 2220797), (141, 992271), (329, 425259), (423, 330757), (987, 141753), (2961, 47251)]