21495765

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 13962795

約数列:

[1, 3, 5, 15, 59, 107, 177, 227, 295, 321, 535, 681, 885, 1135, 1605, 3405, 6313, 13393, 18939, 24289, 31565, 40179, 66965, 72867, 94695, 121445, 200895, 364335, 1433051, 4299153, 7165255, 21495765]

約数ペア:

[(1, 21495765), (3, 7165255), (5, 4299153), (15, 1433051), (59, 364335), (107, 200895), (177, 121445), (227, 94695), (295, 72867), (321, 66965), (535, 40179), (681, 31565), (885, 24289), (1135, 18939), (1605, 13393), (3405, 6313)]