21430072

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1301}}^1$

素因数の和:1407

約数の個数: 32

約数和(自身を含む): 42184800

約数和(自身を除く): 20754728

約数列:

[1, 2, 4, 8, 29, 58, 71, 116, 142, 232, 284, 568, 1301, 2059, 2602, 4118, 5204, 8236, 10408, 16472, 37729, 75458, 92371, 150916, 184742, 301832, 369484, 738968, 2678759, 5357518, 10715036, 21430072]

約数ペア:

[(1, 21430072), (2, 10715036), (4, 5357518), (8, 2678759), (29, 738968), (58, 369484), (71, 301832), (116, 184742), (142, 150916), (232, 92371), (284, 75458), (568, 37729), (1301, 16472), (2059, 10408), (2602, 8236), (4118, 5204)]