18984725

素因数分解:

$5^2\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 24447840

約数和(自身を除く): 5463115

約数列:

[1, 5, 25, 59, 61, 211, 295, 305, 1055, 1475, 1525, 3599, 5275, 12449, 12871, 17995, 62245, 64355, 89975, 311225, 321775, 759389, 3796945, 18984725]

約数ペア:

[(1, 18984725), (5, 3796945), (25, 759389), (59, 321775), (61, 311225), (211, 89975), (295, 64355), (305, 62245), (1055, 17995), (1475, 12871), (1525, 12449), (3599, 5275)]