21748620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2767}}^1$

素因数の和:2910

約数の個数: 48

約数和(自身を含む): 61383168

約数和(自身を除く): 39634548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2620, 2767, 3930, 5534, 7860, 8301, 11068, 13835, 16602, 27670, 33204, 41505, 55340, 83010, 166020, 362477, 724954, 1087431, 1449908, 1812385, 2174862, 3624770, 4349724, 5437155, 7249540, 10874310, 21748620]

約数ペア:

[(1, 21748620), (2, 10874310), (3, 7249540), (4, 5437155), (5, 4349724), (6, 3624770), (10, 2174862), (12, 1812385), (15, 1449908), (20, 1087431), (30, 724954), (60, 362477), (131, 166020), (262, 83010), (393, 55340), (524, 41505), (655, 33204), (786, 27670), (1310, 16602), (1572, 13835), (1965, 11068), (2620, 8301), (2767, 7860), (3930, 5534)]