20662257

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3889}}^1$

素因数の和:3933

約数の個数: 32

約数和(自身を含む): 35850240

約数和(自身を除く): 15187983

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 161, 231, 253, 483, 759, 1771, 3889, 5313, 11667, 27223, 42779, 81669, 89447, 128337, 268341, 299453, 626129, 898359, 983917, 1878387, 2951751, 6887419, 20662257]

約数ペア:

[(1, 20662257), (3, 6887419), (7, 2951751), (11, 1878387), (21, 983917), (23, 898359), (33, 626129), (69, 299453), (77, 268341), (161, 128337), (231, 89447), (253, 81669), (483, 42779), (759, 27223), (1771, 11667), (3889, 5313)]