20949495

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10501}}^1$

素因数の和:10535

約数の個数: 32

約数和(自身を含む): 40327680

約数和(自身を除く): 19378185

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10501, 31503, 52505, 73507, 157515, 199519, 220521, 367535, 598557, 997595, 1102605, 1396633, 2992785, 4189899, 6983165, 20949495]

約数ペア:

[(1, 20949495), (3, 6983165), (5, 4189899), (7, 2992785), (15, 1396633), (19, 1102605), (21, 997595), (35, 598557), (57, 367535), (95, 220521), (105, 199519), (133, 157515), (285, 73507), (399, 52505), (665, 31503), (1995, 10501)]