20677605

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5581}}^1$

素因数の和:5621

約数の個数: 32

約数和(自身を含む): 37511040

約数和(自身を除く): 16833435

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 741, 1235, 3705, 5581, 16743, 27905, 72553, 83715, 106039, 217659, 318117, 362765, 530195, 1088295, 1378507, 1590585, 4135521, 6892535, 20677605]

約数ペア:

[(1, 20677605), (3, 6892535), (5, 4135521), (13, 1590585), (15, 1378507), (19, 1088295), (39, 530195), (57, 362765), (65, 318117), (95, 217659), (195, 106039), (247, 83715), (285, 72553), (741, 27905), (1235, 16743), (3705, 5581)]