21000765595

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1597}}^1\times {\mathrm{2789}}^1$

素因数の和:4455

約数の個数: 32

約数和(自身を含む): 26964524160

約数和(自身を除く): 5963758565

約数列:

[1, 5, 23, 41, 115, 205, 943, 1597, 2789, 4715, 7985, 13945, 36731, 64147, 65477, 114349, 183655, 320735, 327385, 571745, 1505971, 2630027, 4454033, 7529855, 13150135, 22270165, 102442759, 182615353, 512213795, 913076765, 4200153119, 21000765595]

約数ペア:

[(1, 21000765595), (5, 4200153119), (23, 913076765), (41, 512213795), (115, 182615353), (205, 102442759), (943, 22270165), (1597, 13150135), (2789, 7529855), (4715, 4454033), (7985, 2630027), (13945, 1505971), (36731, 571745), (64147, 327385), (65477, 320735), (114349, 183655)]