20203155

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21379}}^1$

素因数の和:21400

約数の個数: 32

約数和(自身を含む): 41049600

約数和(自身を除く): 20846445

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21379, 64137, 106895, 149653, 192411, 320685, 448959, 577233, 748265, 962055, 1346877, 2244795, 2886165, 4040631, 6734385, 20203155]

約数ペア:

[(1, 20203155), (3, 6734385), (5, 4040631), (7, 2886165), (9, 2244795), (15, 1346877), (21, 962055), (27, 748265), (35, 577233), (45, 448959), (63, 320685), (105, 192411), (135, 149653), (189, 106895), (315, 64137), (945, 21379)]