19961235

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{2347}}^1$

素因数の和:2374

約数の個数: 48

約数和(自身を含む): 41024256

約数和(自身を除く): 21063021

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 945, 1215, 1701, 2347, 2835, 7041, 8505, 11735, 16429, 21123, 35205, 49287, 63369, 82145, 105615, 147861, 190107, 246435, 316845, 443583, 570321, 739305, 950535, 1330749, 2217915, 2851605, 3992247, 6653745, 19961235]

約数ペア:

[(1, 19961235), (3, 6653745), (5, 3992247), (7, 2851605), (9, 2217915), (15, 1330749), (21, 950535), (27, 739305), (35, 570321), (45, 443583), (63, 316845), (81, 246435), (105, 190107), (135, 147861), (189, 105615), (243, 82145), (315, 63369), (405, 49287), (567, 35205), (945, 21123), (1215, 16429), (1701, 11735), (2347, 8505), (2835, 7041)]