19653964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1061}}^1$

素因数の和:1497

約数の個数: 24

約数和(自身を含む): 37645776

約数和(自身を除く): 17991812

約数列:

[1, 2, 4, 11, 22, 44, 421, 842, 1061, 1684, 2122, 4244, 4631, 9262, 11671, 18524, 23342, 46684, 446681, 893362, 1786724, 4913491, 9826982, 19653964]

約数ペア:

[(1, 19653964), (2, 9826982), (4, 4913491), (11, 1786724), (22, 893362), (44, 446681), (421, 46684), (842, 23342), (1061, 18524), (1684, 11671), (2122, 9262), (4244, 4631)]