20121806213

素因数分解:

${\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{1321}}^1$

素因数の和:1605

約数の個数: 32

約数和(自身を含む): 21637988352

約数和(自身を除く): 1516182139

約数列:

[1, 31, 53, 73, 127, 1321, 1643, 2263, 3869, 3937, 6731, 9271, 40951, 70013, 96433, 119939, 167767, 208661, 287401, 491363, 2170403, 2989423, 5110949, 5200777, 8891651, 12246991, 15232253, 158439419, 275641181, 379656721, 649090523, 20121806213]

約数ペア:

[(1, 20121806213), (31, 649090523), (53, 379656721), (73, 275641181), (127, 158439419), (1321, 15232253), (1643, 12246991), (2263, 8891651), (3869, 5200777), (3937, 5110949), (6731, 2989423), (9271, 2170403), (40951, 491363), (70013, 287401), (96433, 208661), (119939, 167767)]