21010170944

素因数分解:

$2^6\times 7^1\times {\mathrm{137}}^1\times {\mathrm{342319}}^1$

素因数の和:342475

約数の個数: 56

約数和(自身を含む): 47996002560

約数和(自身を除く): 26985831616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 137, 224, 274, 448, 548, 959, 1096, 1918, 2192, 3836, 4384, 7672, 8768, 15344, 30688, 61376, 342319, 684638, 1369276, 2396233, 2738552, 4792466, 5477104, 9584932, 10954208, 19169864, 21908416, 38339728, 46897703, 76679456, 93795406, 153358912, 187590812, 328283921, 375181624, 656567842, 750363248, 1313135684, 1500726496, 2626271368, 3001452992, 5252542736, 10505085472, 21010170944]

約数ペア:

[(1, 21010170944), (2, 10505085472), (4, 5252542736), (7, 3001452992), (8, 2626271368), (14, 1500726496), (16, 1313135684), (28, 750363248), (32, 656567842), (56, 375181624), (64, 328283921), (112, 187590812), (137, 153358912), (224, 93795406), (274, 76679456), (448, 46897703), (548, 38339728), (959, 21908416), (1096, 19169864), (1918, 10954208), (2192, 9584932), (3836, 5477104), (4384, 4792466), (7672, 2738552), (8768, 2396233), (15344, 1369276), (30688, 684638), (61376, 342319)]