21918908

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 44271360

約数和(自身を除く): 22352452

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 121, 179, 242, 253, 358, 484, 506, 716, 1012, 1331, 1969, 2662, 2783, 3938, 4117, 5324, 5566, 7876, 8234, 11132, 16468, 21659, 30613, 43318, 45287, 61226, 86636, 90574, 122452, 181148, 238249, 476498, 498157, 952996, 996314, 1992628, 5479727, 10959454, 21918908]

約数ペア:

[(1, 21918908), (2, 10959454), (4, 5479727), (11, 1992628), (22, 996314), (23, 952996), (44, 498157), (46, 476498), (92, 238249), (121, 181148), (179, 122452), (242, 90574), (253, 86636), (358, 61226), (484, 45287), (506, 43318), (716, 30613), (1012, 21659), (1331, 16468), (1969, 11132), (2662, 8234), (2783, 7876), (3938, 5566), (4117, 5324)]