21134156

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 41395200

約数和(自身を除く): 20261044

約数列:

[1, 2, 4, 19, 29, 38, 43, 58, 76, 86, 116, 172, 223, 446, 551, 817, 892, 1102, 1247, 1634, 2204, 2494, 3268, 4237, 4988, 6467, 8474, 9589, 12934, 16948, 19178, 23693, 25868, 38356, 47386, 94772, 122873, 182191, 245746, 278081, 364382, 491492, 556162, 728764, 1112324, 5283539, 10567078, 21134156]

約数ペア:

[(1, 21134156), (2, 10567078), (4, 5283539), (19, 1112324), (29, 728764), (38, 556162), (43, 491492), (58, 364382), (76, 278081), (86, 245746), (116, 182191), (172, 122873), (223, 94772), (446, 47386), (551, 38356), (817, 25868), (892, 23693), (1102, 19178), (1247, 16948), (1634, 12934), (2204, 9589), (2494, 8474), (3268, 6467), (4237, 4988)]