28431195

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{691}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 49292544

約数和(自身を除く): 20861349

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 211, 633, 691, 1055, 2073, 2743, 3165, 3455, 8229, 8983, 10365, 13715, 26949, 41145, 44915, 134745, 145801, 437403, 729005, 1895413, 2187015, 5686239, 9477065, 28431195]

約数ペア:

[(1, 28431195), (3, 9477065), (5, 5686239), (13, 2187015), (15, 1895413), (39, 729005), (65, 437403), (195, 145801), (211, 134745), (633, 44915), (691, 41145), (1055, 26949), (2073, 13715), (2743, 10365), (3165, 8983), (3455, 8229)]