20885325

素因数分解:

$3^1\times 5^2\times {\mathrm{281}}^1\times {\mathrm{991}}^1$

素因数の和:1285

約数の個数: 24

約数和(自身を含む): 34688256

約数和(自身を除く): 13802931

約数列:

[1, 3, 5, 15, 25, 75, 281, 843, 991, 1405, 2973, 4215, 4955, 7025, 14865, 21075, 24775, 74325, 278471, 835413, 1392355, 4177065, 6961775, 20885325]

約数ペア:

[(1, 20885325), (3, 6961775), (5, 4177065), (15, 1392355), (25, 835413), (75, 278471), (281, 74325), (843, 24775), (991, 21075), (1405, 14865), (2973, 7025), (4215, 4955)]