20681738

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5839}}^1$

素因数の和:5882

約数の個数: 32

約数和(自身を含む): 40366080

約数和(自身を除く): 19684342

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 154, 161, 253, 322, 506, 1771, 3542, 5839, 11678, 40873, 64229, 81746, 128458, 134297, 268594, 449603, 899206, 940079, 1477267, 1880158, 2954534, 10340869, 20681738]

約数ペア:

[(1, 20681738), (2, 10340869), (7, 2954534), (11, 1880158), (14, 1477267), (22, 940079), (23, 899206), (46, 449603), (77, 268594), (154, 134297), (161, 128458), (253, 81746), (322, 64229), (506, 40873), (1771, 11678), (3542, 5839)]