21368865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1801}}^1$

素因数の和:1929

約数の個数: 32

約数和(自身を含む): 39442176

約数和(自身を除く): 18073311

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 113, 339, 565, 791, 1695, 1801, 2373, 3955, 5403, 9005, 11865, 12607, 27015, 37821, 63035, 189105, 203513, 610539, 1017565, 1424591, 3052695, 4273773, 7122955, 21368865]

約数ペア:

[(1, 21368865), (3, 7122955), (5, 4273773), (7, 3052695), (15, 1424591), (21, 1017565), (35, 610539), (105, 203513), (113, 189105), (339, 63035), (565, 37821), (791, 27015), (1695, 12607), (1801, 11865), (2373, 9005), (3955, 5403)]