20148021

素因数分解:

$3^4\times {\mathrm{251}}^1\times {\mathrm{991}}^1$

素因数の和:1254

約数の個数: 20

約数和(自身を含む): 30248064

約数和(自身を除く): 10100043

約数列:

[1, 3, 9, 27, 81, 251, 753, 991, 2259, 2973, 6777, 8919, 20331, 26757, 80271, 248741, 746223, 2238669, 6716007, 20148021]

約数ペア:

[(1, 20148021), (3, 6716007), (9, 2238669), (27, 746223), (81, 248741), (251, 80271), (753, 26757), (991, 20331), (2259, 8919), (2973, 6777)]