20911695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2521}}^1$

素因数の和:2615

約数の個数: 32

約数和(自身を含む): 38737920

約数和(自身を除く): 17826225

約数列:

[1, 3, 5, 7, 15, 21, 35, 79, 105, 237, 395, 553, 1185, 1659, 2521, 2765, 7563, 8295, 12605, 17647, 37815, 52941, 88235, 199159, 264705, 597477, 995795, 1394113, 2987385, 4182339, 6970565, 20911695]

約数ペア:

[(1, 20911695), (3, 6970565), (5, 4182339), (7, 2987385), (15, 1394113), (21, 995795), (35, 597477), (79, 264705), (105, 199159), (237, 88235), (395, 52941), (553, 37815), (1185, 17647), (1659, 12605), (2521, 8295), (2765, 7563)]