20851695

素因数分解:

$3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{601}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 37275840

約数和(自身を除く): 16424145

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 257, 601, 771, 1285, 1803, 2313, 3005, 3855, 5409, 6939, 9015, 11565, 16227, 27045, 34695, 81135, 154457, 463371, 772285, 1390113, 2316855, 4170339, 6950565, 20851695]

約数ペア:

[(1, 20851695), (3, 6950565), (5, 4170339), (9, 2316855), (15, 1390113), (27, 772285), (45, 463371), (135, 154457), (257, 81135), (601, 34695), (771, 27045), (1285, 16227), (1803, 11565), (2313, 9015), (3005, 6939), (3855, 5409)]