21064496

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1801}}^1$

素因数の和:1869

約数の個数: 40

約数和(自身を含む): 44242704

約数和(自身を除く): 23178208

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 86, 136, 172, 272, 344, 688, 731, 1462, 1801, 2924, 3602, 5848, 7204, 11696, 14408, 28816, 30617, 61234, 77443, 122468, 154886, 244936, 309772, 489872, 619544, 1239088, 1316531, 2633062, 5266124, 10532248, 21064496]

約数ペア:

[(1, 21064496), (2, 10532248), (4, 5266124), (8, 2633062), (16, 1316531), (17, 1239088), (34, 619544), (43, 489872), (68, 309772), (86, 244936), (136, 154886), (172, 122468), (272, 77443), (344, 61234), (688, 30617), (731, 28816), (1462, 14408), (1801, 11696), (2924, 7204), (3602, 5848)]