21105162

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:188

約数の個数: 96

約数和(自身を含む): 53464320

約数和(自身を除く): 32359158

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 47, 57, 78, 94, 101, 114, 117, 141, 171, 202, 234, 247, 282, 303, 342, 423, 494, 606, 611, 741, 846, 893, 909, 1222, 1313, 1482, 1786, 1818, 1833, 1919, 2223, 2626, 2679, 3666, 3838, 3939, 4446, 4747, 5358, 5499, 5757, 7878, 8037, 9494, 10998, 11514, 11609, 11817, 14241, 16074, 17271, 23218, 23634, 24947, 28482, 34542, 34827, 42723, 49894, 61711, 69654, 74841, 85446, 90193, 104481, 123422, 149682, 180386, 185133, 208962, 224523, 270579, 370266, 449046, 541158, 555399, 811737, 1110798, 1172509, 1623474, 2345018, 3517527, 7035054, 10552581, 21105162]

約数ペア:

[(1, 21105162), (2, 10552581), (3, 7035054), (6, 3517527), (9, 2345018), (13, 1623474), (18, 1172509), (19, 1110798), (26, 811737), (38, 555399), (39, 541158), (47, 449046), (57, 370266), (78, 270579), (94, 224523), (101, 208962), (114, 185133), (117, 180386), (141, 149682), (171, 123422), (202, 104481), (234, 90193), (247, 85446), (282, 74841), (303, 69654), (342, 61711), (423, 49894), (494, 42723), (606, 34827), (611, 34542), (741, 28482), (846, 24947), (893, 23634), (909, 23218), (1222, 17271), (1313, 16074), (1482, 14241), (1786, 11817), (1818, 11609), (1833, 11514), (1919, 10998), (2223, 9494), (2626, 8037), (2679, 7878), (3666, 5757), (3838, 5499), (3939, 5358), (4446, 4747)]