20638734

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:664

約数の個数: 32

約数和(自身を含む): 42508800

約数和(自身を除く): 21870066

約数列:

[1, 2, 3, 6, 47, 94, 141, 163, 282, 326, 449, 489, 898, 978, 1347, 2694, 7661, 15322, 21103, 22983, 42206, 45966, 63309, 73187, 126618, 146374, 219561, 439122, 3439789, 6879578, 10319367, 20638734]

約数ペア:

[(1, 20638734), (2, 10319367), (3, 6879578), (6, 3439789), (47, 439122), (94, 219561), (141, 146374), (163, 126618), (282, 73187), (326, 63309), (449, 45966), (489, 42206), (898, 22983), (978, 21103), (1347, 15322), (2694, 7661)]