21230528

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{569}}^1$

素因数の和:645

約数の個数: 56

約数和(自身を含む): 46908720

約数和(自身を除く): 25678192

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 53, 64, 88, 106, 176, 212, 352, 424, 569, 583, 704, 848, 1138, 1166, 1696, 2276, 2332, 3392, 4552, 4664, 6259, 9104, 9328, 12518, 18208, 18656, 25036, 30157, 36416, 37312, 50072, 60314, 100144, 120628, 200288, 241256, 331727, 400576, 482512, 663454, 965024, 1326908, 1930048, 2653816, 5307632, 10615264, 21230528]

約数ペア:

[(1, 21230528), (2, 10615264), (4, 5307632), (8, 2653816), (11, 1930048), (16, 1326908), (22, 965024), (32, 663454), (44, 482512), (53, 400576), (64, 331727), (88, 241256), (106, 200288), (176, 120628), (212, 100144), (352, 60314), (424, 50072), (569, 37312), (583, 36416), (704, 30157), (848, 25036), (1138, 18656), (1166, 18208), (1696, 12518), (2276, 9328), (2332, 9104), (3392, 6259), (4552, 4664)]