21000775055

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2711}}^1\times {\mathrm{3221}}^1$

素因数の和:5987

約数の個数: 32

約数和(自身を含む): 27891900288

約数和(自身を除く): 6891125233

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 2711, 3221, 13555, 16105, 35243, 41873, 100307, 119177, 176215, 209365, 501535, 595885, 1303991, 1549301, 6519955, 7746505, 8732131, 43660655, 113517703, 323088847, 567588515, 1615444235, 4200155011, 21000775055]

約数ペア:

[(1, 21000775055), (5, 4200155011), (13, 1615444235), (37, 567588515), (65, 323088847), (185, 113517703), (481, 43660655), (2405, 8732131), (2711, 7746505), (3221, 6519955), (13555, 1549301), (16105, 1303991), (35243, 595885), (41873, 501535), (100307, 209365), (119177, 176215)]