21377685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2789}}^1$

素因数の和:2877

約数の個数: 32

約数和(自身を含む): 39640320

約数和(自身を除く): 18262635

約数列:

[1, 3, 5, 7, 15, 21, 35, 73, 105, 219, 365, 511, 1095, 1533, 2555, 2789, 7665, 8367, 13945, 19523, 41835, 58569, 97615, 203597, 292845, 610791, 1017985, 1425179, 3053955, 4275537, 7125895, 21377685]

約数ペア:

[(1, 21377685), (3, 7125895), (5, 4275537), (7, 3053955), (15, 1425179), (21, 1017985), (35, 610791), (73, 292845), (105, 203597), (219, 97615), (365, 58569), (511, 41835), (1095, 19523), (1533, 13945), (2555, 8367), (2789, 7665)]