9781956

素因数分解:

$2^2\times 3^2\times {\mathrm{163}}^1\times {\mathrm{1667}}^1$

素因数の和:1840

約数の個数: 36

約数和(自身を含む): 24893232

約数和(自身を除く): 15111276

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 163, 326, 489, 652, 978, 1467, 1667, 1956, 2934, 3334, 5001, 5868, 6668, 10002, 15003, 20004, 30006, 60012, 271721, 543442, 815163, 1086884, 1630326, 2445489, 3260652, 4890978, 9781956]

約数ペア:

[(1, 9781956), (2, 4890978), (3, 3260652), (4, 2445489), (6, 1630326), (9, 1086884), (12, 815163), (18, 543442), (36, 271721), (163, 60012), (326, 30006), (489, 20004), (652, 15003), (978, 10002), (1467, 6668), (1667, 5868), (1956, 5001), (2934, 3334)]