19958805

素因数分解:

$3^5\times 5^1\times {\mathrm{16427}}^1$

素因数の和:16447

約数の個数: 24

約数和(自身を含む): 35878752

約数和(自身を除く): 15919947

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 16427, 49281, 82135, 147843, 246405, 443529, 739215, 1330587, 2217645, 3991761, 6652935, 19958805]

約数ペア:

[(1, 19958805), (3, 6652935), (5, 3991761), (9, 2217645), (15, 1330587), (27, 739215), (45, 443529), (81, 246405), (135, 147843), (243, 82135), (405, 49281), (1215, 16427)]