21971096

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 49593600

約数和(自身を除く): 27622504

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 83, 116, 163, 166, 203, 232, 326, 332, 406, 581, 652, 664, 812, 1141, 1162, 1304, 1624, 2282, 2324, 2407, 4564, 4648, 4727, 4814, 9128, 9454, 9628, 13529, 16849, 18908, 19256, 27058, 33089, 33698, 37816, 54116, 66178, 67396, 94703, 108232, 132356, 134792, 189406, 264712, 378812, 392341, 757624, 784682, 1569364, 2746387, 3138728, 5492774, 10985548, 21971096]

約数ペア:

[(1, 21971096), (2, 10985548), (4, 5492774), (7, 3138728), (8, 2746387), (14, 1569364), (28, 784682), (29, 757624), (56, 392341), (58, 378812), (83, 264712), (116, 189406), (163, 134792), (166, 132356), (203, 108232), (232, 94703), (326, 67396), (332, 66178), (406, 54116), (581, 37816), (652, 33698), (664, 33089), (812, 27058), (1141, 19256), (1162, 18908), (1304, 16849), (1624, 13529), (2282, 9628), (2324, 9454), (2407, 9128), (4564, 4814), (4648, 4727)]