21066516

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^2\times {\mathrm{1621}}^1$

素因数の和:1669

約数の個数: 54

約数和(自身を含む): 56236362

約数和(自身を除く): 35169846

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 361, 684, 722, 1083, 1444, 1621, 2166, 3242, 3249, 4332, 4863, 6484, 6498, 9726, 12996, 14589, 19452, 29178, 30799, 58356, 61598, 92397, 123196, 184794, 277191, 369588, 554382, 585181, 1108764, 1170362, 1755543, 2340724, 3511086, 5266629, 7022172, 10533258, 21066516]

約数ペア:

[(1, 21066516), (2, 10533258), (3, 7022172), (4, 5266629), (6, 3511086), (9, 2340724), (12, 1755543), (18, 1170362), (19, 1108764), (36, 585181), (38, 554382), (57, 369588), (76, 277191), (114, 184794), (171, 123196), (228, 92397), (342, 61598), (361, 58356), (684, 30799), (722, 29178), (1083, 19452), (1444, 14589), (1621, 12996), (2166, 9726), (3242, 6498), (3249, 6484), (4332, 4863)]